6
Answer: DSet 4: Function Notation (Intermediate)
Explanation
PROBLEM
If f(x) = 3x - 3, find f(3).
If f(x) = 3x - 3, find f(3).
A.
5
B.
8
C.
3
D.✓ Correct
6
Detailed Explanation
Choice D is the best answer. f(3) = 3(3) - 3 = 9 - 3 = 6
Why others are wrong:
A: 5 is incorrect because it does not satisfy the equation.
B: 8 is incorrect because it does not satisfy the equation.
C: 3 is incorrect because it does not satisfy the equation.