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PolarNik [594]
2 years ago
11

I need help(!) I appreciate a good explanation so I can understand it too (!)

Mathematics
1 answer:
mr_godi [17]2 years ago
4 0

The ranges values of the function f(x) are: {-89,-9,7} - Option D.

<h3>Domain and Range</h3>

The domain of a function is the set of input values for which the function is real and defined. In the other words, when you define the domain, you are indicating for which values x the function is real and defined.

While the domain is related to the values ​​of x, the range is related to the possible values ​​of y that the function can have.

Here, you need to replace the domain values in the given equation.

f(x)=-2x²+9

  • For x=-3

       f(x)=-2*(-3)²+9

        f(x)=-2*9+9

       f(x)=-18+9=-9

  • For x=1
  • f(x)=-2*(1)²+9
  • f(x)=-2*1+9
  • f(x)=-2+9=7

  • For x=7
  • f(x)=-2*(7)²+9
  • f(x)=-2*49+9
  • f(x)=-98+9=-89

Learn more about the range here:

brainly.com/question/10197594

#SPJ1

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Answer:

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Step-by-step explanation:

               240

              /      \

            2      120                     (240 = 2 x 120)

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