1. simplify the expression (3x+5)/(2(x+1/4x)-1)
2. determine the domain and range of the function {(-3,,,9)}
3. find the vertex of the parabola that represents the function f(x)=(x-5)^2+9
4. find the domain of the function . write the answer in interval notation f(x)=(2x^3-250)/(x^2-2x-15)
5. find the domain of the function g(x) = 4/x^2+3x+2. write your answer in set builder notation.
6. which of the following functions have only one point that is not in the domain? select all that apply.
a. f(x)= x^2-6x-8
b. f(x)=3/x^2+2x+1
c. f(x)=1/x^2+5x+4
d. f(x)=5/3+x
7.