1.Suppose f is a function that takes a real number x and performs the following three steps in the order given: (1) square root; (2) make the quantity the denominator of a fraction with numerator 1; (3) subtract 11. Find an expression for
State the domain of f(x). (Enter your answer using interval notation.)
2. For f(x) = x2 − 4x + 2, find and simplify the following.
f(3x)
f(3x) =____________________________
3. for (x) = x2 − 4x + 3, find and simplify the following.
f(x5)
f(x5)=____________________________
Find the (implied) domain of the function. (Enter your answer using interval notation.)
3 

Subject  Mathematics 
Due By (Pacific Time)  09/01/2015 11:05 pm 
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