danny_dumond
If f(x) = 5x + 2 and g(x) = 6x - 3, what is f(g(x))?
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Diyadiya
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Replace x with the value of g(x)
f(g(x))= 5(6x-3) + 2
Diyadiya
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Now distribute 5 in 5(6x - 3)
Diyadiya
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can you try it?
Wired
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When you say f(g(x)), it means take the value of g(x) and that will equal x in f(x). To make it easier, just rewrite f(x) as 5c+2, just so it's easier to read.
So:
f(c) = 5c+2
g(x) = 6x-3
When you have f(g(x)), c = 6x-3
Therefore:
f(c) = 5(6x-3)+2
danny_dumond
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(30x-15)+2
Diyadiya
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Yes!
30x - 15 + 2
what is -15 + 2?
danny_dumond
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-__- lol -13
Diyadiya
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Yes! so final answer is? ;D
danny_dumond
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30x-13
Diyadiya
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Very Good! :)