Advanced MathEasyEvaluating a quadratic with a coefficient
Advanced Math practice question
The function g is defined by g(x) = 3x². What is the value of g(2)?
- A. 12Correct
- B. 6
- C. 9
- D. 36
Answer: A. 12
g(2) = 3(2²) = 3(4) = 12.
Why the other answers are wrong
- B. 6
- 6 is 3 × 2, forgetting to square.
- C. 9
- 9 is 3², swapping the roles of 3 and 2.
- D. 36
- 36 is (3 × 2)², squaring the coefficient too.
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