SOLUTION: Please solve the: a. f o g b. g o f c. f o g (3) Of: f(x) = 2x , g(x) = x + 5 Please show solution.

Algebra ->  Functions -> SOLUTION: Please solve the: a. f o g b. g o f c. f o g (3) Of: f(x) = 2x , g(x) = x + 5 Please show solution.      Log On


   

Question 474982: Please solve the:
a. f o g
b. g o f
c. f o g (3)
Of: f(x) = 2x , g(x) = x + 5
Please show solution.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Please solve the:
a. f o g = f[g(x)] = f[x+5] = 2(x+5) = 2x+10
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b. g o f = g[f(x)] = g[2x] = 2x+5
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c. f o g (3) = f[g(3)] = f[3+5] = f[8] = 2*8 = 16
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If: f(x) = 2x , g(x) = x + 5
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Cheers,
Stan H.