10
Answer: BSet 5: Function Notation (Intermediate)
Explanation
PROBLEM
If f(x) = 4x + 3, find x when f(x) = 11.
If f(x) = 4x + 3, find x when f(x) = 11.
A.
5
B.✓ Correct
2
C.
1
D.
4
Detailed Explanation
Choice B is the best answer. 4x + 3 = 11. 4x = 8. x = 2
Why others are wrong:
A: 5 is incorrect because it does not satisfy the equation.
C: 1 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.
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