Rotate the axes so that the new equation contains no xy-term. Graph the new equation.xy +16 = 0
A. 
B. 
Answer: A
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Solve the problem.The parabola y2 = -28x is shifted 7 units down and 4 units to the right. Find the focus and directrix of the new parabola.
A. Focus: (-7, -3); Directrix: y = 11 B. Focus: (11, -7); Directrix: x = 11 C. Focus: (-3, -7); Directrix: x = -3 D. Focus: (-3, -7); Directrix: x = 11
Evaluate the algebraic expression for the given value(s) of the variable(s).(x + 2y)2 ; x = 3, y = 2
A. 25 B. 14 C. 49 D. 7
Find the slope of the line containing the given points.
Solve the problem.If a satellite is placed in a circular orbit of 320 kilometers above the Earth, what is the equation of the path of the satellite if the origin is placed at the center of the Earth (the diameter of the Earth is approximately 12,740 kilometers)?
A. x2 + y2 = 40,576,900 B. x2 + y2 = 44,756,100 C. x2 + y2 = 102,400 D. x2 + y2 = 170,563,600