Decide whether the equation defines y as a function of x. (Remember that to be a function, every value of x must give one and only one value of y.)y = x2 - 3
A. Yes
B. No
Answer: A
Mathematics
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Use a graphing calculator to graph the system of inequalities.
? 5y ? 3y ? x2 - 3
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.7 gal 2 fl oz ÷ 2
A. 3 gal 2 qt 1 fl oz B. 3 gal 1 qt 1 fl oz C. 3 gal 9 fl oz D. 3 gal 3 qt 1 fl oz
Mathematics
Solve the problem.If the average cost per unit C to produce x units of plywood is given by 
what is the unit cost for 40 units?
A. -$12.50 B. $16.67 C. $37.50 D. $0.75
Mathematics
Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.x2 + 4y4 = 4
A. x-axis only B. Origin only C. y-axis only D. x-axis, y-axis, origin
Mathematics