CO-ORDINATE GEOMETRY-5

Find the slope of a line which passes through (-5, -2) and (6,-9)

Solution

x₁ = -5,  y₁ =-2,  x₂ = 6,  y₂ = -9

m = y2 –y1

       x2 – x1

m =   -9 –(-2)

           6 –(-5)

m =   -9 + 2

           6 + 5

m =    - 7

           11

Hence the slope is -7/11