what is the slope of the line that contains the point (1,1)and(-2,8)

Question

(1-,1)and(-2,8)

 

Answer 1

slope = (8-1)/(-2-1) = 7/-3 = -7/3

y = (-7/3)x + b

1= -7/3 + b

b = 10/3

y = (-7/3) + 10/3