
To find

, (the inverse of the function) you need to first replace the f(x) with y...

Then switch the x and the y.

Solve for y.

Take the square root of each side...
Answer: This would usually be done in rl with a rulers or angle stick but id say its 78degrees
An equivalent expression could just be one that is simplified. So we get 9y - 2y - 10 if we distribute the 1/2, which is 7y - 10.
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Hope this helps!
==jding713==

The multiples of 105 are 3,5,and 7 so none of them can come out of the square root so it cannot be simplified.