Which ordered pair is not a solution of y= -4x -9

A(-9,27)
B(3,-21)
C(-6,15)
D(5,-28)

I have no idea how to do this help please

1 answer

just see which pair of values does not work. replace x and y with the values given:

-4(-9)-9 = 36-9 = 27 so it is a solution
now try the others.