find f(-1)+g(-1)=

Question

let f(x)=x²+4x and g(x)=4-x

find f(-1)+g(-1)=

Answer 1

This is a great example of function operations! First, let's find f(-1) and g(-1). To do this, plug -1 in for x in f(x) and again for g(x):

f(-1) = (-1)²+4(-1) = 1 - 4 = -3 g(-1) = 4 - (-1) = 4 + 1 = 5

Now we can find f(-1) + g(-1):

f(-1) + g(-1) = -3 + 5 = 2

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