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Find g(h(9)) if g(x)=4x+7 and h(x)=-2x

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6 votes

Answer:

g(h(9)) is equal to -65.

Explanation:

To find g(h(9)), we need to first evaluate h(9) and then substitute the result into g(x).

Given that h(x) = -2x, we can find h(9) by substituting 9 into the expression for h(x):

h(9) = -2(9) = -18

Now that we know h(9) is -18, we can substitute this value into g(x) to find g(h(9)):

g(h(9)) = g(-18)

Using the expression for g(x) which is g(x) = 4x + 7, we substitute -18 for x:

g(-18) = 4(-18) + 7

Calculating this expression:

g(-18) = -72 + 7

g(-18) = -65

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