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kati45 [8]
2 years ago
14

F (4)=-3×^2-2 g (×)=-2×+2 find f (4) and g (7)

Mathematics
1 answer:
Oksana_A [137]2 years ago
7 0
I'm pretty sure you meant:
f(x) = -3x^2-2
g(x) = -2x+2

To evaluate a function at a certain value, you just have to plug that certain value into the function. Basically, replace all x's with the one given. Let's do f(x) first:
f(4) = -3(4)^2-2=-3(16)-2 = -48-2 = -50

So, for f(x), your answer is -50.

Let's do the exact same thing for g(x):
g(7) = -2(7)+2 = -14+2 = -12

Your answer for g(x) is -12. 


Hopefully, this makes sense!
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