2
Answer: DSet 5: Linear Functions (Intermediate)
Explanation
PROBLEM
If f(x) = 8x - 16, find x when f(x) = 24.
If f(x) = 8x - 16, find x when f(x) = 24.
A.
8
B.
3
C.
4
D.✓ Correct
5
Detailed Explanation
Choice D is the best answer. 8x - 16 = 24. 8x = 40, x = 5
Why others are wrong:
A: 8 is incorrect because it does not satisfy the equation.
B: 3 is incorrect because it does not satisfy the equation.
C: 4 is incorrect because it does not satisfy the equation.