Exercises: Parallel and Perpendicular Lines

Read each slope first -- directly from slope-intercept form, or with the $-\frac{A}{B}$ shortcut from standard form -- then compare.

Grade 10·17 problems·~30 min·Digital SAT Math·topic·sat-alg-lin2-parperp

Work through problems with immediate feedback

Fluency Practice

Extract each slope first, then compare.

Which line is parallel to $y = 4x - 7$ ?

$y = -\frac{1}{4}x + 2$ , since its slope is the negative reciprocal.

$y = -4x - 7$ , since it shares the same constant term.

$y = 4x + 1$

$y = \frac{1}{4}x - 7$ , since it shares the same constant term.