Practice problem
Which line is perpendicular to 9y=8x9y=8x9y=8x?
y=98x+10y=\dfrac{9}{8}x+10y=89x+10
y=89x−2y=\dfrac{8}{9}x-2y=98x−2
y=8x+7y=8x+7y=8x+7
y=−98x+5y=-\dfrac{9}{8}x+5y=−89x+5
Type a concept, like “slope” or “photosynthesis”.
