# Topic Questions: 3.1 The function $e^x$ and its graph. — WMA13 Exponential and logarithms > 34 WMA13 Exponential and logarithms topic questions (77 marks) on 3.1 The function … and its graph. — 20 papers, 2020–2026. Open the exact question in the… - Canonical HTML: https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-3-wma13/exponential-and-logarithms/3-1-the-function-e-x-and-its-graph/ - Markdown mirror: https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-3-wma13/exponential-and-logarithms/3-1-the-function-e-x-and-its-graph/index.md --- Edexcel IAL · Mathematics · WMA13 · Exponential and logarithms 34 WMA13 Exponential and logarithms topic questions are tagged to this syllabus point across 20 papers (2020–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved. - 34 topic questions - 20 papers - 77 tagged marks - 31.8% of topic questions - 27.4% of topic marks - 2020–2026 - Syllabus 2018–current - [All WMA13 Exponential and logarithms topic questions](https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-3-wma13/exponential-and-logarithms/) - [All paper codes](https://www.examsci.com/topics/) Core finding **This Exponential and logarithms syllabus point appears in 20 WMA13 papers across 2020–2026, contributing 34 topic questions and 77 marks.** The most recent appearance is WMA13/01 January 2026. That equals 31.8% of the 107 topic questions and 27.4% of the 281 marks tagged to Exponential and logarithms. Only parts tagged to this subtopic are counted, so a four-part question can contribute one item and one part's marks. The table lists every matching question, its tagged parts and marks, with a link back to the paper page. Sessions are newest first, so the statement can be traced back through the full paper history. ## Topic questions by session Newest sessions first. Parts and marks count only the parts tagged to this subtopic; “x of y parts” shows how much of the question is tagged elsewhere. Select the paper cell to open the matching question on the paper page, or use **Go to Practice Hub** to answer that exact question in the Interactive Practice Hub. | Paper | Question | Type | Parts | Marks | Difficulty | Practice | | --- | --- | --- | --- | --- | --- | --- | | [**WMA13/01** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2026-january-wma13-01/#q-10) | **Q10** Exponential Growth and Decay Modelling - Edexcel IAL P3 Jan 2026 Q10 | FRQ | 2 of 3 parts ((b), (c)) | 7 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b91d109b-12f0-4102-aa8f-400fe2a86d4f&question_id=65df7d86-da6c-432f-b036-015514c9340e&source_detail=WMA13%2F01+January+2026) | | [**WMA13/02** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2026-january-wma13-02/#q-6) | **Q6** Exponential Modelling - Edexcel IAL P3 Jan 2026 Q6 | FRQ | 2 of 3 parts ((a), (c)) | 6 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=416be4ac-52e5-488e-a9c0-0597b9ecb63b&question_id=6f298946-e61b-430c-a1d4-616a672ea7bd&source_detail=WMA13%2F02+January+2026) | | [**WMA13/01** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2025-october-wma13-01/#q-5) | **Q5** Differentiation and Exponential Decay - Edexcel IAL P3 Oct 2025 Q5 | FRQ | 1 of 4 parts ((d)) | 3 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=68f45e7e-d3e8-4ff7-87c7-5b918e878396&question_id=09afa993-f7b6-4d0c-82c7-21e4c8e8b070&source_detail=WMA13%2F01+October+2025) | | [**WMA13/02** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2025-october-wma13-02/#q-7) | **Q7** Exponential Modelling and Rates - Pearson Edexcel IAL Pure Mathematics P3 October 2025 Q7 | FRQ | 2 of 3 parts ((a), (c)) | 6 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=73a0fb52-1d42-42bb-a968-6c598a98744a&question_id=18da2dec-6a9a-4d01-85a8-5468f1ef6dbf&source_detail=WMA13%2F02+October+2025) | | [**WMA13/01** June 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2025-june-wma13-01/#q-6) | **Q6** Exponential growth and decay - Edexcel IAL Pure Mathematics P3 June 2025 Q6 | FRQ | 1 of 3 parts ((a)) | 2 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b98f92bb-447a-4cfa-83c9-63fc1aac1791&question_id=938eae30-72da-4a06-867e-8fa12cdf8bae&source_detail=WMA13%2F01+June+2025) | | [**WMA13/01** January 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2025-january-wma13-01/#q-5) | **Q5** Exponential Cooling Model - Edexcel IAL P3 Jan 2025 Q5 | FRQ | 3 of 4 parts ((a), (b), (c)) | 6 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ecf09460-9ef7-4eaa-b080-ca6aece93a99&question_id=a47c6fa9-2306-4a50-bfe5-c16935fd7481&source_detail=WMA13%2F01+January+2025) | | [**WMA13/01** October 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2024-october-wma13-01/#q-8) | **Q8** Heart Rate Modelling and Iteration - Edexcel IAL P3 Oct 2024 Q8 | FRQ | 2 of 5 parts ((a), (b)) | 2 of 12 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=d4feaf64-6c81-4e52-9be5-5c0526923f6f&question_id=ef8618dd-a904-49d5-8229-248dd45aef37&source_detail=WMA13%2F01+October+2024) | | [**WMA13/01** June 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2024-june-wma13-01/#q-8) | **Q8** Mathematical Modeling and Numerical Methods - Edexcel IAL P3 June 2024 Q8 | FRQ | 1 of 3 parts ((a)) | 3 of 10 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b9555bea-c6d3-4cbd-b1ab-b0397c8b6901&question_id=289b4f98-cf35-43b5-baff-1f1c8472024d&source_detail=WMA13%2F01+June+2024) | | [**WMA13/01** January 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2024-january-wma13-01/#q-5) | **Q5** Exponential Growth and Decay - Edexcel IAL Pure Mathematics P3 Jan 2024 Q5 | FRQ | 1 of 4 parts ((d)) | 1 of 7 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=4a96851a-aeab-425a-b696-80344b1fc98f&question_id=f457a185-b8eb-4105-988a-745d51c83c3b&source_detail=WMA13%2F01+January+2024) | | [**WMA13/01** October 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2023-october-wma13-01/#q-4) | **Q4** Exponential Modeling of Phone Sales - Edexcel P3 Oct 2023 Q4 | FRQ | 3 of 4 parts ((a), (b), (d)) | 5 of 7 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3ba04af0-df38-436f-8463-bcb730944c19&question_id=73920f44-20ed-491f-9ace-796efc2a4061&source_detail=WMA13%2F01+October+2023) | | [**WMA13/01** June 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2023-june-wma13-01/#q-7) | **Q7** Exponential Growth and Decay - Edexcel IAL Pure Mathematics P3 June 2023 Q7 | FRQ | 1 of 3 parts ((a)) | 3 of 8 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=df8c9a60-a7c2-40ba-aafe-b3d75fa2b513&question_id=a9b8e335-345e-47fa-a8e0-28af509ab2e1&source_detail=WMA13%2F01+June+2023) | | [**WMA13/01** January 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2023-january-wma13-01/#q-10) | **Q10** Exponential Growth and Decay - Edexcel IAL Pure Mathematics P3 January 2023 Q10 | FRQ | 1 of 3 parts ((b)) | 3 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9520c4fd-f54c-4973-8bd6-906cc4cdf380&question_id=636932c6-2007-4223-ab9e-01034af7969a&source_detail=WMA13%2F01+January+2023) | | [**WMA13/01** October 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2022-october-wma13-01/#q-3) | **Q3** Calculus and Turning Points - Edexcel IAL Pure Mathematics P3 October 2022 Q3 | FRQ | 1 of 2 parts ((b)) | 2 of 7 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=09d7e936-6b00-4171-84bf-78b6821eee70&question_id=88d7ac8e-5a8c-4f29-ae13-f5a87cf8e59f&source_detail=WMA13%2F01+October+2022) | | [**WMA13/01** October 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2022-october-wma13-01/#q-4) | **Q4** Logarithms and Differentiation - Edexcel IAL Pure Mathematics P3 October 2022 Q4 | FRQ | 1 of 2 parts ((b)) | 3 of 5 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=09d7e936-6b00-4171-84bf-78b6821eee70&question_id=527e577e-bfcf-42c3-9dd3-fad7ee2bb918&source_detail=WMA13%2F01+October+2022) | | [**WMA13/01** June 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2022-june-wma13-01/#q-8) | **Q8** Velocity Modeling and Iterative Methods - Edexcel IAL P3 June 2022 Q8 | FRQ | 1 of 3 parts ((a)) | 5 of 12 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=d850babb-3755-4d48-bff2-c9b2b7718061&question_id=4a56dac6-0c94-44dd-9216-9ee0bb96b0f2&source_detail=WMA13%2F01+June+2022) | | [**WMA13/01** January 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2022-january-wma13-01/#q-4) | **Q4** Exponential Growth Model for Pond Weed - Edexcel IAL P3 Jan 2022 Q4 | FRQ | 2 of 3 parts ((a), (c)) | 3 of 7 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b815ce52-b63f-4883-92ce-747290f56811&question_id=84914c9d-40fc-499d-a157-e3e1533547c1&source_detail=WMA13%2F01+January+2022) | | [**WMA13/01** January 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2022-january-wma13-01/#q-8) | **Q8** Logarithmic Modeling and Exponential Differentiation - Edexcel IAL P3 Jan 2022 Q8 | FRQ | 1 of 3 parts ((b)) | 1 of 8 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b815ce52-b63f-4883-92ce-747290f56811&question_id=e004ea95-3459-47c5-a5fb-d481ae6e240f&source_detail=WMA13%2F01+January+2022) | | [**WMA13/01** October 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2021-october-wma13-01/#q-3) | **Q3** Exponentials and Logarithms Modeling - Edexcel IAL P3 October 2021 Q3 | FRQ | 2 of 3 parts ((b), (c)) | 3 of 6 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=17b8ea5e-8edc-48d9-80ad-0d3d7d35e66a&question_id=74a0dd4a-a3c3-45ce-9ac8-f6573ff9e181&source_detail=WMA13%2F01+October+2021) | | [**WMA13/01** June 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2021-june-wma13-01/#q-8) | **Q8** Population Models and Calculus - Edexcel IAL P3 2021 Jun Q8 | FRQ | 1 of 5 parts ((c)) | 4 of 13 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=0b21212f-2ba5-4561-a1a9-89eea72d9095&question_id=a16836f9-b550-44a7-bd80-5ed123ee2a45&source_detail=WMA13%2F01+June+2021) | | [**WMA13/01** January 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2021-january-wma13-01/#q-5) | **Q5** Exponential Models and Rates of Change - Edexcel IAL Pure Mathematics P3 Jan 2021 Q5 | FRQ | 2 of 4 parts ((a), (c)) | 4 of 11 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=f92eac0f-28ee-4528-9654-d30258f13985&question_id=7442ef2d-7055-430f-83e6-3d43dd5910cd&source_detail=WMA13%2F01+January+2021) | | [**WMA13/01** October 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2020-october-wma13-01/#q-6) | **Q6** Exponential Functions and Numerical Methods - Edexcel IAL P3 June 2020 Q6 | FRQ | 1 of 3 parts ((a)) | 3 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=0df42054-dee9-4801-8b02-f55948e61436&question_id=39892877-1835-4ac4-a79b-2eaca18bddb6&source_detail=WMA13%2F01+October+2020) | | [**WMA13/01** January 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-3-wma13/2020-january-wma13-01/#q-1) | **Q1** Toad Population Model - Edexcel IAL Pure Mathematics P3 January 2020 Q1 | FRQ | 2 of 3 parts ((a), (c)) | 2 of 6 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=44a376ad-3a1b-44b2-906c-e3e264e10e0d&question_id=34df4af1-c5a7-4f20-9557-bd04210eca51&source_detail=WMA13%2F01+January+2020) | ## Related topic questions in Exponential and logarithms - [3.2 The function $\ln x$ and its graph; $\ln x$ as the inverse function of $e^x$.](https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-3-wma13/exponential-and-logarithms/3-2-the-function-ln-x-and-its-graph-ln-x-as-the-inverse-function-of-e-x/) — 60 question items · 21 papers — 185 marks · 2020–2026 - [3.3 Use logarithmic graphs to estimate parameters in relationships of the form $y=ax^n$ and $y=kb^x$](https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-3-wma13/exponential-and-logarithms/3-3-use-logarithmic-graphs-to-estimate-parameters-in-relationships-of-the-form-y-ax-n/) — 32 question items · 16 papers — 82 marks · 2020–2026 ## Topic question rules and edge cases **How many topic questions cover this syllabus point?** 22 question stems cover this subtopic across 20 papers, but only 34 tagged parts and 77 marks belong to it. Other parts of the same questions are assessed under different statements and are excluded from this page. **Which papers include this subtopic?** The table lists every matching session from 2020–2026. Each row links to the question anchor on the paper page, where the full paper context and practice entry point are available. **Why can one question appear under several subtopics?** The parts of one question can assess different syllabus statements. Each part is counted under its own subtopics, so the same question stem can appear on several subtopic pages while each page lists only the parts and marks tagged to that statement. **Can I practise these questions with AI marking?** Yes. Open a paper from the table and use the Interactive Practice Hub entry point. The page itself is static HTML so search engines and retrieval agents can read the full question list without executing JavaScript. --- Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-3-wma13/exponential-and-logarithms/3-1-the-function-e-x-and-its-graph/