Billboard on the highway has a perimeter of 118 feet find the length of the billboard at the height is 19 feet
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We have a function,
and we are asked to find its inverse function.
An inverse function essentially gets you the original value that was dropped into a function.
For example,
If I put 5 into I will get 24. Now If I take 24 and put it into the inverse function I have to get number 5 back.
The way to determine the inverse function swap the x and the , then solve for
,
Of course the notation demands that the obtained function be called,
Hope this helps :)