Identify the equation without completing the square.2x2 + 3y2 - 2x - 4 = 0
A. parabola
B. ellipse
C. hyperbola
D. not a conic
Answer: B
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Find the first four terms of the indicated expansion.(x1/3 - y)9
A. x3 - 9x2y + 36xy2 - 84y3 + . . . B. x3 - 9x8/3y + 36x7/3y2 - 84x2y3 + . . . C. x3 - 9x8/3y + 72x7/3y2 - 504x2y3 + . . . D. x3 + 9x8/3y + 36x7/3y2 + 84x2y3 + . . .
The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the system, if it exists.
A. inconsistent system, no solution B. infinitely many solutions of the form x = 5z + 5, y = 2z + 2, z = 1 C. x = 0, y = 0, z = 1 D. infinitely many solutions of the form x = 5 - 5z, y = 2 - 2z, z = z
Provide an appropriate response.Simplify and express your answer in terms of positive exponents: 
What will be an ideal response?
Rotate the coordinate axes to eliminate the xy term.x2 + 2xy + y2 + 4
x - 4
y = 0
A. y' = 
B. 
+ 
= 1
C. 
+ 
= 1
D. 4(x') = (y') 2