Practice Problems (Junior Cert Mathematics): Flashcards

Same slope

90 degrees (right angle)

Negative reciprocal of each other

$y = mx + c$ where $m$ is slope and $c$ is y-intercept

Use the same slope as the original line

Flip the fraction and change the sign

$-1$

Parallel

$3$

$\frac{1}{4}$

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

$-3$