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shusha [124]
3 years ago
13

Evaluate |x| + (-2x 2) for x = 3.

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
4 0
<h2>Hello!</h2>

The answer is:

f(3)=|x|+(-2x^{2})=-15

<h2>Why?</h2>

Evaluating a function means replacing the variable with the given value (3 for this case).

To evaluate the function, we need to remember that the absolute value guarantees a possitive value, for example:

|-3|=3\\|-4|=4

So, we are given the function:

f(x)=|x|+(-2x^{2})

Then, evaluating we have:

f(3)=|3|+(-2*(3)^{2})=3+(-2*9)=3-18=-15

Hence, the answer is:

f(3)=|x|+(-2x^{2})=-15

Have a nice day!

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Look up and here and help mee
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Which question are you wanting answered its hard to tell
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