Provide an appropriate response.The equation y = x2 is satisfied by the points (2, 4) and (-2, 4). A horizontal line may be drawn between these two points. Is 
a function? Why or why not?
What will be an ideal response?
It is a function because each x-value gives one and only one y-value. It passes the vertical line test.
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Divide and simplify.
A. 
- 2 + 
B. 
+ 2 + 
C. 
- 2 + 
D. 
+ 2 + 
Solve the problem.The number of enrollees in health maintenance organizations (HMOs) in Illinois in a recent year was 2,509,395. This was a 43.1% increase over the previous year. What was the former number of enrollees?
A. 701,438 enrollees B. 175,360 enrollees C. 1,753,595 enrollees D. 3507 enrollees
Factor.5x6 - 45x5 + 70x4
A. 5x4(x - 7)(x - 2) B. 5x4(x2 - 9x + 14) C. x4(5x - 35)(x - 2) D. x4(x - 7)(5x - 10)
Find the domain of the rational expression. 
A. {x|x is a real number and x ? 5 and x ? -7} B. {x|x is a real number and x ? 5 and x ? -5 and x ? -7} C. {x|x is a real number and x ? 5 and x ? -5 and x ? 7} D. {x|x is a real number and x ? 5 and x ? 7}