Question

(-1, 4), (x, 3); m = 1/5

Answer 1

`x=-6`

Explanation:

m=(y2-y1)/(x2-x1)

Plug in all known points and variables:

`(1)/(5) =((3-4))/((x--1))=(-1)/((x+1))`

Multiply both sides of the equation by (x+1):

`((x+1))/(5) =-1`

Multiply both sides by 5:

`x+1=-5`

Subtract 1 from both sides:

`x=-6`