3
Answer: CSet 1: Linear Functions (Intermediate)
Explanation
PROBLEM
If f(x) = 4x + 1, find x when f(x) = 17.
If f(x) = 4x + 1, find x when f(x) = 17.
A.
5
B.
16
C.✓ Correct
4
D.
3
Detailed Explanation
Choice C is the best answer. 4x + 1 = 17. 4x = 16, x = 4
Why others are wrong:
A: 5 is incorrect because it does not satisfy the equation.
B: 16 is incorrect because it does not satisfy the equation.
D: 3 is incorrect because it does not satisfy the equation.