4MA1/1H Jan 2023, Question 14: Plotting Curves from a Table of Values
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1H (Higher) · Calculator · 1 mark
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Complete a table of values for y = (2/x)(5 − 1/x) at given x values, then draw its graph for 0.5 ≤ x ≤ 5 on a grid.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 1 mark
- 1y = 2(5x − 1) ÷ x²
- 2When x = 0.5: y = 2 × (5 × 0.5 − 1) ÷ 0.5² = 2 × 1.5 ÷ 0.25 = 12
- 3When x = 2: y = 2 × (5 × 2 − 1) ÷ 2² = 2 × 9 ÷ 4 = 4.5
- 4The missing values are 12 (at x = 0.5) and 4.5 (at x = 2)
Answer12 and 4.5
Stuck on a step? Read the free lesson: Plotting Curves from a Table of Values
Practise more plotting curves from a table of values questions
Real 4MA1 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on plotting curves from a table of values
Also searched as: 4MA1 1H January 2023 · 4MA1/1H · 4ma1 jan23 1h · question 14.
Lemmara is an independent study tool, not affiliated with or endorsed by Pearson Edexcel. The worked solutions are Lemmara’s own.