Question 6
FunctionsIf g(x) = 2x + 3 and f(x) = 3x2 − 2x + 4, find f[g(−3)].
- A.37
- B.1
- C.−3
- D.−179
Show the answer and explanation
Answer: A (37)
Explanation
g(−3) = −3, then f(−3) = 27 + 6 + 4 = 37.
If g(x) = 2x + 3 and f(x) = 3x2 − 2x + 4, find f[g(−3)].
Answer: A (37)
g(−3) = −3, then f(−3) = 27 + 6 + 4 = 37.