Parallel and Perpendicular Lines (VCE SSCE Mathematical Methods): Quizzes

They have identical gradients

-1

$-\frac{1}{3}$

$y = 2x - 4$

$2$

$4$ and $-\frac{1}{4}$

$2$

$90°$

$y - y_1 = m(x - x_1)$

Equal angles