Write an equation for the parabola.
A. y2 = -4x
B. x2 = 4y
C. x2 = -4y
D. y2 = 4x
Answer: D
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Solve the problem.A cell phone tower in a city transmits a signal in every direction from the tower. If the coverage area has a radius of 56 miles, what is the diameter of this coverage area?
A. 3136 mi B. 28 mi C. 560 mi D. 112 mi
A point lying on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.(-6, -7) Find cot ?.
A. - 
B. 
C. 
D. - 
Use Descartes' Rule of Signs and the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = 4x3 - 5x2 + 8x - 10
A. 10; f(x) = (x - 10)(4x2 + 1)
B. 
; f(x) = (4x - 5)(x2 + 2)
C. 2, 
, 1; f(x) = (4x - 5)(x - 1)(x - 2)
D. -2, -1, 
; f(x) = (4x - 5)(x + 1)(x + 2)
Find the equation of the parabola described.Focus at (6, 0); vertex at (0, 0)
A. y2 = 6x B. x2 = 6y C. x2 = 24y D. y2 = 24x