Question

Which is the slope of the line that passes through the points (−2,4) and (5,−1)?

Answer 1

Formula of the slope of the line
m=(y2-y1)/(x2-x1)

y2= -1, y1 = 4
x2=5, x1 = -2

m=(-1-4)/(5-(-2)) = -5/7

Answer is D. slope = -5/7

Answer 2

Apply the slope formula:
          4-(-1)         -5
m = ------------ = ------
         -2-5             7