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Find f(–2) for the function f(x) = 3x2 – 2x + 7.
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3 votes
Find f(–2) for the function f(x) = 3x2 – 2x + 7.

User Herr Grumps
by
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2 Answers

4 votes
the correct answer is 23
User Rahul K Rajan
by
8.0k points
2 votes

The correct answer is: 23

Step-by-step explanation:

Given function:


f(x) = 3x^2 - 2x + 7 ---- (A)

f(-2) means that we have to put x = -2 in equation (A):


f(-2) = 3(-2)^2 - 2(-2) + 7 \\ f(-2) = 3*4 + 4 + 7 \\ f(-2) = 12+4+7 \\ f(-2) = 23 \\


Hence the correct answer is: f(-2) = 23.

User Aren Li
by
8.1k points
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