Solution for Problem 2.3.1

   Find the slope of the line that contains the points (1,-5) and (-4, 2).

 

Solve

Step

Formula for slope given 2 points

(x1, y1) and (x2, y2

  y2 - y1 = 2 – (-5) = 7

x2 - x1 = -4 1 = -5

(1, -5) and (-4, 2)

Done!