Hi Tutor,

Can you please help me understand the following.

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

(1) Multiply by -2.

(2) Add 3.

(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 (y).(no explanation required)

(b) State the domain of f.(no explanation required)