Write the equation of the line that contains the two points P=(−2,−2) and Q=(8,2).

Answer 1

First, find the slope.

m = (y₂ - y₁) / (x₂ - x₁)

x₁ = -2

y₁ = -2

x₂ = 8

y₂ = 2

Then write the equation in point slope form using either point.

y - y₁ = m(x - x₁)

or

y - y₂ = m(x - x₂)

Plug in the numbers. Either equation is correct.