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Need to find f(x+1) the function f is defined by f(x)

Need to find f(x+1) the function f is defined by f(x)-example-1
User Matthew Lehner
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1 Answer

15 votes
15 votes

The given function is


f(x)=(x+7)/(3x+4)

To find f(x + 1), substitute x in f by (x + 1)


f(x+1)=((x+1)+7)/(3(x+1)+4)

Simplify it


\begin{gathered} f(x+1)=(x+1+7)/(3x+3+4) \\ \\ f(x+1)=(x+8)/(3x+7) \end{gathered}

The answer is


f(x+1)=(x+8)/(3x+7)

User Gaumann
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