The domain and range of a function are the possible <em>x and y values </em>of the function.
<em>The domain and the range of the function is: (a) </em><em> and </em>
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The functions are given as:
(g o f)(x) is calculated as:
So, we have:
Take LCM
Represent the denominator as follows, to calculate the domain
Add 4 to both sides
Take square roots of bot sides
Hence, the domain of the function is:
On the graph of (see attachment), the function does not have a value from <em>y = 1 to 2.</em>
Hence, the range is:
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