SOLUTION: how do u figure out g of f when f(x)= x+1 and g(x)= 2x. i got f of g but i cant figure out g of f bcuz i checked in the back on the book with all the answers and it wont add up...t

SOLUTION: how do u figure out g of f when f(x)= x+1 and g(x)= 2x. i got f of g but i cant figure out g of f bcuz i checked in the back on the book with all the answers and it wont add up...t

Algebra.Com

Question 10583: how do u figure out g of f when f(x)= x+1 and g(x)= 2x. i got f of g but i cant figure out g of f bcuz i checked in the back on the book with all the answers and it wont add up...thank you.
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
g of f of x means g[f(x)], and it means to substitute the quantity of f(x) into the formula for g(x).

g(x) = 2(x)
g(____) = 2(_____)
g[f(x)] = 2(x+1)
g[f(x)] = 2x + 2

R^2 at SCC
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