Question

1
2
If f(x) = 2x²+1, what is f(x) when x = 3?
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3
13
19

Answer 1

When x = 3, f(x) equals 19.

Step-by-step explanation:

To find the value of f(x) when x = 3, we need to substitute x = 3 into the given function:

f(x) = 2x² + 1

Replacing x with 3, we get:
f(3) = 2(3)² + 1
f(3) = 2(9) + 1
f(3) = 18 + 1
f(3) = 19

Therefore, when x = 3, the value of f(x) is 19.

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