Evaluate the expression.(-4)1/2
A. -2
B. -1
C. 2
D. not a real number
Answer: D
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Write the equation of the line whose graph is shown.
A. y = x + 5 B. y = - x - 5 C. y = x - 5 D. y = - x + 5
Write each inequality in interval notation and graph the interval on a number line.x ? 3
A. (-?, 3]
B. [3, ?)
C. (-?, 3)
D. (3, ?)
Solve the problem.The height h in feet of a frisbee thrown is given by 
, where x is the time traveled in seconds. The frisbee is released at a height of 
At what time will the height of the frisbee be 
again? (Round your answer to the nearest tenth of a second, if necessary.)
A. The height of the frisbee will never be 3 feet again. B. 10.1 sec C. 5.1 sec D. 12.5 sec
Identify the vertex and axis of symmetry for the parabola.
A. (0, 4); x = 4 B. (0, 4); x = 0 C. (4, 0); x = 4 D. (4, 0); y = 0