1
Answer: BSet 4: Function Notation (Intermediate)
Explanation
PROBLEM
If f(x) = 4x + 2, find x when f(x) = 26.
If f(x) = 4x + 2, find x when f(x) = 26.
A.
8
B.✓ Correct
6
C.
5
D.
4
Detailed Explanation
Choice B is the best answer. 4x + 2 = 26. 4x = 24. x = 6
Why others are wrong:
A: 8 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.