Use the substitution method to solve the system of equations. choose the
correct ordered pair.
у= 8х - 4
х= 4
a. (2, 4)
в. (2, 12)
с. (4, 28)
d. (4, 4)

C. (4,28)

Step-by-step explanation:

When y = 8x - 4 ; x = 4

when u substitute x in the equation

the value of y = 28

y = (8 x 4) - 4

= 32 - 4

= 28.

As coordinates it would be (x,y) = ( 4,28 )

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

step-by-step explanation:

where is the questions