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Tems11 [23]
3 years ago
11

Use the function to find f(-2)

Mathematics
2 answers:
yulyashka [42]3 years ago
4 0
<h3>Answer:</h3>

\frac{1}{9}

<h3>Step-by-step explanation:</h3>
  1. Substitute the -2 into the equation.  f(-2)=3^{-2}
  2. Begin to simplify the exponent.  x^{-y}=\frac{1}{x^y}, so you get f(-2)=\frac{1}{3^2}
  3. Finish simplifying the exponent.  3 times 3 is 9.  f(-2)=\frac{1}{9}
algol [13]3 years ago
3 0

Answer:

f(-2) = 1/9

Step-by-step explanation:

Plug in -2 to x in the equation:

f(x) = 3^x

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

Solve. Note that if there is a negative in the power, you must flip the "fraction" and set it over 1. The answer itself does not become negative:

f(-2) = 1/(3^2)

f(-2) = 1/(9)

f(-2) = 1/9 is your answer.

~

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