Perpendicular Lines (Leaving Cert Mathematics): Quizzes

They form a right angle

Undefined

$-\frac{1}{4}$

$y = -\frac{1}{2}(x-3)+4$

$-1$

Undefined

$y=-\frac{1}{5}(x-2)+3$

$-\frac{1}{7}$

They have equal slopes

Negative reciprocal