Solve the problem.A satellite dish is in the shape of a parabolic surface. Signals coming from a satellite strike the surface of the dish and are reflected to the focus, where the receiver is located. The satellite dish shown has a diameter of 16 feet and a depth of 7 feet. The parabola is positioned in a rectangular coordinate system with its vertex at the origin. Write an equation in the form of 
for the parabola used to shape the dish. 
A. y = 
x2
B. y = 
x2
C. y = 
x2
D. y = 
x2
Answer: A
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Use two equations in two variables to find the following integers.The sum of two integers is 34 and their difference is 8.
A. 8, 26 B. 11, 19 C. 13, 19 D. 13, 21 E. 11, 26
Solve the problem.Yuri used his credit card in May to purchase the following items: tent 
sleeping bag 
camping stove ($31), and backpack ($153). On June 1, Yuri makes a payment of $337 and makes no other charges on this credit card. The bank that issues the card charges 
interest per month. What is the balance due on July 1?
A. $324.78 B. $338.31 C. $422.89 D. $681.71
Solve the system of equations.x - 4y + z = 174x - y - z = 23
A. 
B. 
C. 
D. 
Find the requested polynomial. Find a polynomial function of degree 3 with 2, 2i, -2i as zeros.
A. f(x) = x3 - 2x2 + 4x - 8 B. f(x) = x3 - 2x2 - 4x + 8 C. f(x) = x3 + 2x2 + 4ix + 8i D. f(x) = x3 - 2ix2 + 4x + 8