In 1960 the life expectancy in the UK was 71 years
In 1975 the life expectancy in the UK was 73 years
Given that x x\,x years is the life expectancy n n\,n years after 1960.
Using a linear model, form an equation linking x x\,x with nnn.
In 2020 the life expectancy in the UK was 81.8 years.
Comment on the suitability of your model in light of this information
Practise Edexcel AS Level Maths Straight Line Graphs with exam-style questions for AS Level Maths. 21 questions covering 5.1 y = mx + c, 5.2 Equations of Straight Lines, 5.3 Parallel and Perpendicular Lines, 5.4 Length and Area, and 5.5 Modelling with Straight Lines, matched to the Edexcel AS Level Maths (8MA0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.