Use positive rational exponents to rewrite the expression. Assume variables are positive.
-2
A. -z4/7
B. 
C. 
D. -z28
Answer: B
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Graph the polynomial function. f(x) = x4 - 4x2
A. 
B. 
C. 
D. 
Describe the figure as completely as possible, using the properties simple, closed, polygonal curve, and polygon.
A. Simple, closed B. Polygon C. Polygonal curve D. Simple, not closed
Complete the ordered pairs. Then graph the equation by plotting the points and drawing a line through them.2x - y = 2(0, ), ( , 0), (4, )
A. (0, -2), (-1, 0), (4, -10)
B. (0, -2), (1, 0), (4, 6)
C. (0, 2), (-1, 0), (4, 10)
D. (0, -2), (-4, 0), (4, 0)
For problems 14 and 15, a rancher has a 5000-gallon water tank that he uses to water his cattle. He uses 250 gallons per day for the cows. Write a linear function that is a model for the number of gallons of water, 
, in the tank 
days after filling it.
A. 
B. 
C. 
D. 
E. none of these