Question

Write an equation of the line that passes through (-3,4) and (0,0).

Answer 1

y = (-4/3)x

Explanation:

Δy/Δx

(0-4) / (0-(-3)) = -4/3 = slope = m

mx + b = y ⇒ standard form

(-4/3)x + b = y

find b using (0,0)

(-4/3)(0) + b = 0

b = 0

therefore

y = (-4/3)x