Question

I need help, ​please....

Answer 1

2 points on the best fit line are (1.5, 2.5) and (9.5, 20)

from these 2 points

gradient,m = (20- 2.5)/(9.5 - 1.5)

m = 2.19

using y = mx +c for any of the 2 points

...c = -0.78

thus solving for y at x = 11...the best answer is 23.5