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Given f(x)= 5(3−x), what is the value of f(−2)?
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Given f(x)= 5(3−x), what is the value of f(−2)?

User Insanebits
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1 Answer

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In order to get the output for f(-2), you would simply replace the input, x, for the value of interest, -2. So,
f(-2)= 5(3-(-2))
The rule of signs say that (-)(-) = (+). So,
f(-2)=5(3+2)
f(-2)=5(5)
f(-2)=25
User Jay Truluck
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