Find the coordinates of the vertex for the horizontal parabola defined by the given equation.x = -(y - 3)2 + 9
A. (9, 3)
B. (9, -3)
C. (-3, 9)
D. (3, 9)
Answer: A
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Find the x-intercepts for the parabola whose equation is given. If the x-intercepts are irrational, round your answers to the nearest tenth.y = 2x2 - 7x - 4
A. x-intercepts (4, 0) and (0.5, 0) B. x-intercepts (-1, 0) and (-2, 0) C. x-intercepts (4, 0) and (-0.5, 0) D. x-intercepts (-1, 0) and (2, 0)
Find the requested value using the given stock table. 
Sales volume for the day for CommercialAir (CMA)
A. 177,180 B. 177.18 C. 17,718 D. 1,771,800
Write the inequality using interval notation, and illustrate the inequality using the real number line.1 < x < 8
A. [1, 8]
B. [1, 8)
C. (1, 8)
D. (1, 8)
Solve.The formula v = 
can be used to estimate the maximum safe velocity v, in miles per hour, at which a car can travel along a curved road with a radius of curvature r, in feet. To the nearest whole number, find the radius of curvature if the maximum safe velocity is 35 miles per hour.
A. 196 ft B. 490 ft C. 3063 ft D. 1225 ft