How do you find the inverse of f(x)=√x−2 and is it a function?
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Hope it helps
Step-by-step explanation:
To find the inverse of f(x), first you switch x and y
f(x) = √x - 2 <=> y =√x - 2 <=> x = √y - 2 <=> you solve for y <=>
√y = x + 2 <=> now you need to get rid of the root <=>(√y)² = (x+2)²
<=> y = (x+2)²
(x+2)² can also be written as x²+4x + 4
but however you write it is okay. And yes it is a function.
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