Question

1. solve for y when x = 1 in the equation 4x - 2y = 8.

a. 2
b. -2
c. 0
d. 1

Explanation:

Step1: Substitute \( x = 1 \) into the equation

Substitute \( x = 1 \) into \( 4x - 2y = 8 \), we get \( 4\times1 - 2y = 8 \).

Step2: Simplify the equation

Simplify \( 4\times1 - 2y = 8 \) to \( 4 - 2y = 8 \).

Step3: Solve for \( y \)

Subtract 4 from both sides: \( -2y = 8 - 4 = 4 \). Then divide both sides by -2: \( y = \frac{4}{-2} = -2 \).

Answer:

b. \(-2\)