Question

Select the pair of equations whose graphs are perpendicular.




5x – 8y = 9
12x – 5y = 7



x + 6y = 8
y = 2x – 8



2y = –3x + 5
2x + 3y = 4



y = 2x – 7
x + 2y = 3

Answer 1

YAY!

slope o perpendicular lines are negative reciprocals

Answer 2

You might have to rewrite it in y=mx+b format

Then use property that for perpendicular lines m1m2=-1

Where m1 , m2 are the slopes of the 2 lines.

Answer 3

hmmmmm ok ill try