For x = - 9
y = 4 x - 9 = 4 * ( - 9 ) - 9 = - 36 - 9 = - 45
For x = 3
y = 4 x - 9 = 4 * 3 - 9 = 12 - 9 = 3
For x = - 6
y = 4 x - 9 = 4 * ( - 6 ) - 9 = - 24 - 9 = - 33
For x = 5
y = 4 x - 9 = 4 * 5 - 9 = 20 - 9 = 11
If youe expression mean :
y = - 4 x -9
then
( 5 , - 28 ) is not a solution becouse:
for x = 5
y = - 4 x -9 = - 4 * 5 - 9 = - 20 - 9 = - 29
Which ordered pair is not a solution of
y = 4x -9
(-9, 27)
(3, -21)
(-6, 15)I think this one?
(5, -28)
2 answers
Thank you!