The function is :
y = √(x-12), x≥12
To find the inverse function, we interchange x and y, and then make y the subject again.
So interchanging x and y we have:
x = √(y-12)
Squaring both sides gives;
x² = y-12
Now making y the subject we have,
y = x² +12
x≥0.
Therefore the inverse function is;
y = x² +12, x≥0.
Hence the correct answer is C.
It took 60 seconds to fax all documents to Gem
Step-by-step explanation:
The simple addition has to be done to solve the given problem
Given
total faxes = 4
Time for fax 1: 
Time for fax 2: 
Time for fax 3: 
Time for fax 4: 
The total time t will be:

Hence,
It took 60 seconds to fax all documents to Gem
Keywords: Time, addition
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