15-09-2016
Mathematics

contestada

If f(x) = 2 ^{2} - x, find f(-3).

Respuesta :

dharazzz dharazzz

15-09-2016

fx=2x-x
f=2x/x-x
f=2-x
-3*f=-3f
-3f=-3*(2-x)
-3f=-6+3x

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15-09-2016

Plug in -3 for x. So 2^2 - -3=4+3. The answer is 7. f(-3)=7.

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