Respuesta :

f(3)=2*3²+3=18=3=21
C is the answer
taniaorozco
just plug in what x equals, as they tell you.

f(x) = 2x² + 3     f(3)

f(3) = 2(3²) + 3
f(3) = 2(9) + 3
f(3) = 18 + 3
f(3) = 21

c. 21 is your answer

hope this helps, God bless!

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