SOLUTION: Some help Please given f(x)=3x-7, find f^-1(x) thank you for your time

Question 61898: Some help Please

given f(x)=3x-7, find f^-1(x)
thank you for your time

Answer by chitra(359) (Show Source): You can put this solution on YOUR website!
The given function is:

f(x) = 3x - 7

To find f^-1(x)

Let y = f(x) = 3x - 7

therefore,

y = 3x - 7

Now solve for "x" from this:

y + 7 = 3x [Adding 7 on both sides, we get]

= x [Divide by 3]

So now, we have

x =

Thus, f^-1(y)=

Thus, replacing x by y, we get:

f^-1(x)=

Hence, the solution.

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