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OpenStudy (anonymous):
If f(x)=3x2+5x, find f(-2) a)-22 b)-9 c)2 d)22
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jigglypuff314 (jigglypuff314):
to find f(-2) plug in -2 for x into 3x^2 + 5x so 3(-2)^2 + 5(-2) = ?
OpenStudy (anonymous):
still no help
jigglypuff314 (jigglypuff314):
what do you not understand then? 3(-2)(-2) + 5(-2) = ?
OpenStudy (anonymous):
u plug in the -2 for the x values and solve, the answer should be one of the options
OpenStudy (anonymous):
2 , i figured it out but i have to hurry and you are no help
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