A boy is standing on a flat field and tosses his ball toward a second boy standing at the other end of the field. The path of the ball is a parabola, and the equation of the path is 
Based on this information, answer the question.What is the name of the place on the path where the ball is highest from the ground?
A. The x-intercept
B. The y-intercept
C. The vertex
D. None of the above
Answer: C
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Evaluate or simplify the given expression.sin (tan-1 x)
A. 
B. 
C. 
D. 
For the given equation, state whether the directrix is vertical or horizontal and give its location in relation to the pole.r = 
A. Horizontal, 6 units below the pole B. Vertical, 6 units to the left of the pole C. Vertical, 24 units to the left of the pole D. Horizontal, 24 units above the pole
Solve, finding all solutions.tan x = -
(Express your answer in degrees.)
A. 150° + k ? 360° and 210° + k ? 360°, where k is any integer B. 150° + k ? 360° and 330° + k ? 360°, where k is any integer C. 120° + k ? 360° and 300° + k ? 360°, where k is any integer D. 120° + k ? 360° and 240° + k ? 360°, where k is any integer
Factor completely. If the polynomial cannot be factored, say it is prime.x2 + 20x + 100
A. (x - 10)2 B. (x + 10)2 C. (x + 10)(x - 10) D. x2 + 20x + 100