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For the following​ function, find the given values in parts​ (a) through​ (c) below.

For the following​ function, find the given values in parts​ (a) through​ (c) below-example-1
User Denis K
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1 Answer

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19 votes

Answer:

Explanation:

f(x) = x^2 + 4x is specified as a function. When the x is replaced in "f(x)" is replaced with a number, you treat it as a variable.

In this case, f(-3) is almost exactly like saying x = -3.

Everywhere x is in the function is replaced with -3, because you are plugging it in to find a value. Here is a demonstration:

f(-3) = (-3)^2 + 4(-3)

f(-3) = 9 - 12

f(-3) = -3

The answer to your question is -3. Don't be afraid to ask anymore questions regarding this if you are confused.