Question: f is a function that takes a real number x and performs these four steps in the order given: (1) Multiply by -3. (2) Add

fis a function that takes a real number x and performs these four steps in the order given:

(1) Multiply by -3.

(2) Add 5.

(3) Take the square root.

(4) Take the reciprocal. (That is, make the quantity the denominator of a fraction with numerator 1.)

(a) Find an expression for f (x).

(b) State the domain of f.

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