Simplify the expression.
?
?
Write the answer without using negative exponents. Assume that the variable is restricted to those numbers for which the expression is defined.
?
A. 
B. ?
C. ?
D. ?
Answer: C
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Find the vertex, the y-intercept, and the x-intercepts (if any exist), and graph the function.y = x2 - 6x + 9
A. vertex (-3, 0)
x-int: (-3, 0);
y-int: (0, 9)
B. vertex (0, -9)
x-int: (3, 0),(-3, 0);
y-int: (0, -9)
C. vertex (0, 9)
no x-intercepts;
y-int: (0, 9)
D. vertex (3, 0)
x-int: (3, 0);
y-int: (0, 9)
Solve the problem.The two charts show the weight gain of some people and the weight loss of other people. Use the information given to answer the questions below. 
What is the difference between the weight gain of Bob and the weight loss of Frank?
A. 3351 grams B. -3351 grams C. 5065 grams D. -5065 grams
Solve the problem.A satellite dish is shaped like a paraboloid of revolution. The signals that emanate from a satellite strike the surface of the dish and are reflected to a single point, where the receiver is located. If the dish is 8 feet across at its opening and is 2 feet deep at its center, at what position should the receiver be placed?
What will be an ideal response?
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 