SLOPE OR GRADIENT 1E

 

Find the slope of a line which passes through (-15, -2) and (6,-9)

 

Solution

 

x₁ = -15,  y₁ =-2,  x₂ = 6,  y₂ = -9

 

m = y2 –y1

       x2 – x1

 

m =   -9 –(-2)

           6 –(-15)

 

m =   -9 + 2

           6 + 15

 

m =    - 7

           21

 

 

Hence the slope is -7/21

 

TRY THIS……………..

 Find the slope of a line which passes through (-15, -6) and (1,-9)