Practice problem
Which of the following lines is perpendicular to y=4x−3y = 4x-3y=4x−3?
y=−4x+2y = -4x+2y=−4x+2
y=14x+7y = \frac{1}{4}x+7y=41x+7
y=3x−4y = 3x-4y=3x−4
y=−14x−4y = \frac{-1}{4}x-4y=4−1x−4
Type a concept, like “slope” or “photosynthesis”.