Question

Use the substitution method to solve the system of equations. Choose the correct ordered pair.
y= 8x - 4
x= 4
A. (2,12)
B. (4,28)
C. (4,4)
D. (2,4)

Answer 1

To use the substitution method to solve the system of equations:

1. Start with the given equations:
- \( y = 8x - 4 \)
- \( x = 4 \)

2. Substitute \( x = 4 \) into the first equation:

\[
y = 8(4) - 4
\]
\[
y = 32 - 4
\]
\[
y = 28
\]

3. The solution is \( (x, y) = (4, 28) \).

Therefore, the correct ordered pair is **B. (4,28)**.