9
Answer: CSet 2: Linear Functions (Intermediate)
Explanation
PROBLEM
If f(x) = 4x - 2 and g(x) = 2x + 6, find x when f(x) = g(x).
If f(x) = 4x - 2 and g(x) = 2x + 6, find x when f(x) = g(x).
A.
2
B.
8
C.✓ Correct
4
D.
3
Detailed Explanation
Choice C is the best answer. 4x - 2 = 2x + 6. 2x = 8, x = 4
Why others are wrong:
A: 2 is incorrect because it does not satisfy the equation.
B: 8 is incorrect because it does not satisfy the equation.
D: 3 is incorrect because it does not satisfy the equation.