Graph the ellipse. Give the coordinates of the center, as well as the values of a and b.2x2 + 5y2 - 24x + 40y + 142 = 0
A. center (6, -4), a = 
, b = 
B. center (-6, 4), a = 
, b = 
C. center (-6, 4), a = 
, b = 
D. center (6, -4), a = 
, b = 
Answer: A
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Prove that the equation is an identity.
= 
What will be an ideal response?
Factor completely. If the polynomial is prime, state so.343x3 - y3
A. (7x - y)(49x2 + y2) B. (7x - y)(49x2 + 7xy + y2) C. (7x + y)(49x2 - 7xy + y2) D. (343x - y)(x2 + 7xy + y2)
Multiply. Express the answer as a single polynomial in standard form.(x - 11)(x2 + 5x - 9)
A. x3 - 6x2 - 46x - 99 B. x3 + 16x2 + 64x + 99 C. x3 + 16x2 + 46x - 99 D. x3 - 6x2 - 64x + 99
A linear system where? m, b,? n, and c are nonzero constants is shown below
y = mx+b y = nx+c Discuss the relationships among the four constants if the system has a unique solution. Choose the correct answer below. A. If m ? n, then the lines are not parallel and do not overlap and must intersect at a point. B. If b ? c, then the lines do not overlap and must intersect at a point. C. If b = c, then the lines do not overlap and must intersect at a point on the yaxis. D. If m = n and b = c, then the lines overlap and the solution is unique.