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Consider the function f(x) = 8 − 3x2. Find the value of f(x) when x = 3 and select the correct answer below.

−19
−10
26
35

2 Answers

7 votes

its -19 I'm 100% positive

User Lysbeth
by
7.7k points
5 votes

f(x) = 8 - 3x^2

Plug in x=3


f(3) = 8 - 3(3)^2\\ f(3) = 8 - 3(9)\\ f(3) = 8 - 27\\\\ f(3) = -19

The answer is A
User Nero
by
8.1k points