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Please someone help me out. I beggggg

Please someone help me out. I beggggg-example-1
User Dyo
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1 Answer

4 votes

Answer:

1. 144 2. 16 3. 1 4. 3x-6

Explanation:

So think of this as a function in a function. So you work from the inside to the outside. So for problem 1, we start with f(4)) [you read it "f of 4"] so what is the solution when x = 4, since f(x) means the function of x so f(4) means 'the function of 4' inside f(x).

Since f(x) = 3x then f(4) = 3(4) [notice how you substitute the 4 everywhere you see a letter x]

so f(4) = 12, now you work the next part h(f(4)) since f(4)=12 then h(12)

So take the h(x) function which is h(x) =
x^(2) then h(12) =
12^(2) so h(12) = 144

User Michiel Kalkman
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