The scatter diagram shows the scores of 10 students in their paper 1 and paper 2 Maths GCSE exams. A line of best fit has been drawn.

a) what type of correlation is shown by the graph

b) A pupil who scored 50 in his paper 1 exam got ill and missed paper2.

Use the line of best fit to predict what his paper 2 mark could have been.

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.