SOLUTION: Consider f(x) = 2x + 3. Find the inverse of this function. Verbally, compare what f does to x (“multiply by 2, then add 3”) to what f^-1 does to x.

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Question 886663: Consider f(x) = 2x + 3. Find the inverse of this function. Verbally, compare what f does to x (“multiply by 2, then add 3”) to what f^-1 does to x.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
What function g(x) makes this happen: ?
Solve that for g(x).
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
Consider f(x) = 2x + 3. Find the inverse of this function. Verbally, compare what f does to x (“multiply by 2, then add 3”) to what f^-1 does to x.


f(x) = 2x + 3

y = 2x + 3

x = 2y + 3 ---- Interchanging x and y

2y = x - 3





You should be able to do the comparison!! 

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