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 A Level Maths Straight Line Graphs with exam-style questions for A 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 A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 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.
