What’s the equation of the line passing through the points (2,11) and (-8,-19)?

Answer 1

Find the slope.

m = (-19 - 11) / (-8 - 2) = -30/(-10) = 3

Use the point-slope form to create the linear equation.

y - 11 = 3(x - 2)

y - 11 = 3x - 6

y = 3x + 5

y - (-19) = 3[x - (-8)]

y + 19 = 3(x + 8)

y + 19 = 3x + 24

y = 3x + 5