Question

WILL GIVE 50 POINTS

Suppose f is a function that takes a real number x and performs the following steps in the order given:
(1) add 8
(2) take the square root
(3) subtract 9
(4) divide into 12

f(x)=?

Answer 1

The argument for the square root cannot be negative, nor can the denominator expression be zero. Hence the square root argument must be strictly positive, i.e. .

As an interval, the domain is

John

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Explanation: