Question

Find the slope of the line (8,-2) (1,1)

Answer 1

slope m = -
`(3)/(7)`

Explanation:

calculate the slope m , using the slope formula

m =
`(y_(2)-y_(1) )/(x_(2)-x_(1) )`

let (x₁, y₁ ) = (8, - 2 ) and (x₂, y₂ ) = (1, 1 )

substitute these values into the formula for m

m =
`(1-(-2))/(1-8)` =
`(1+2)/(-7)` =
`(3)/(-7)` = -
`(3)/(7)`