Question

For the function: f(x) = 4 + 4x - 4x² Find f(2)

Answer 1

Answer:

f(x) = -4

Step-by-step explanation:

Given function: f(x) = 4 + 4x - 4x²

Here, we are being asked to find the value of the function when x is equal to 2.

Substitute 2 as the value of x in the function and simplify:

⇒ f(x) = 4 + 4x - 4x²

⇒ f(2) = 4 + 4(2) - 4(2)²

⇒ f(2) = 4 + 8 - 4(4)

⇒ f(2) = 4 + 8 - 16

⇒ f(2) = 12 - 16

⇒ f(2) = -4

This means that when the value of x is 2, the value of the function is -4.

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Answer 2

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Answer:  $\textsf{f(2) = -4}$

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Given:  $\textsf{f(x) = 4 + 4x - 4}x^2$

Find:  $\textsf{f(2)}$

Solution:  We need to plug in the value of 2 into all of the x's that are present in the expression and then we just simplify the expression.

Plug in the values

• $\textsf{f(x) = 4 + 4x - 4}x^2$

• $\textsf{f(2) = 4 + 4(2) - 4}(2)^2$

Simplify the expression

• $\textsf{f(2) = 4 + 8 - 4}(4)$

• $\textsf{f(2) = 12 - 16}$

• $\textsf{f(2) = -4}$

After completing the steps, we were able to determine that the answer to the question would be that f(2) is equal to -4.