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Select the pair of equations whose graphs are perpendicular.


A.) 5x - 8y = 9

12x - 5y = 7


B.) 3x + 6y = 8

y = 3x - 8


C.) y = 2x - 7

x + 3y = 3


D.) 2y = -3x + 5

2x - 3y = 4

Verified Answer :

msyatham
DThe lines intersect to form perpendicular.
soyrbto

you know that 2 lines are perpendicular when the fulfil
m1m2 = -1 
from D.)

m1 = -3/2
m2 = 2/3
so
m1m2 = -3/2*2/3 = -1
this conclude that they are perpendicular each other

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