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10 votes
10 votes
Help please I'm really struggling ​

Help please I'm really struggling ​-example-1
User Ian Kenney
by
3.0k points

1 Answer

28 votes
28 votes

Answer:

a).


(fog)(x) = f(g(x)) \\ = (3x + 1) + 4 \\ = 3x + 5 \\

b).


(gof)(x) = g(f(x)) \\ = 3(x + 4) + 1 \\ = 3x + 12 + 1 \\ = 3x + 13

c).


(fog)( - 2) = 3( - 2) + 5 \\ = - 6 + 5 \\ = - 1

d).


(gof)( - 2) = 3( - 2) + 13 \\ = - 6 + 13 \\ = 7

I hope I helped you^_^

User Khonix
by
3.0k points
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