Multiply.
A. x2 - 
x - 1
B. x2 - 
x - 1
C. x2 - 
D. x2 - 1
Answer: B
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Solve the problem.Find the center and the scale factor of the size transformation shown below.
A. Center P; scale factor 1/4 B. Center P; scale factor 4 C. Center O; scale factor 4 D. Center O; scale factor 1/4
Find the center, transverse axis, vertices, foci, and the equations of the asymptotes of the hyperbola.(x + 1)2 - 9(y - 2)2 = 9
A. center: (-1, 2)
transverse axis: x = -1
vertices: (-1, -1) and (-1, 5),
foci: (-1, 2 - 
) and (-1, 2 + 
),
asymptotes: y + 2 = - 3(x - 1) and y + 2 = 3(x - 1)
B. center: (2, -1)
transverse axis: y = 2
vertices: (-1, -1) and (5, -1)
foci: (2 - 
, -1) and (2 + 
, -1)
asymptotes: y + 1 = - 
(x - 2) and y + 1 = 
(x - 2)
C. center: (-1, 2)
transverse axis: y = 2
vertices: (-4, 2) and (2, 2)
foci: (-1 - 
, 2) and (-1 + 
, 2)
asymptotes: y - 2 = - 
(x + 1) and y - 2 = 
(x + 1)
D. center: (-1, 2)
transverse axis: y = 2
vertices: (-2, 2) and (0, 2)
foci: (-1 - 
, 2) and (-1 + 
, 2)
asymptotes: y - 2 = - 3(x + 1) and y - 2 = 3(x + 1)
The manager of an electronics store maintains an inventory of IBM-compatible computers and Macintosh computers in the quantities given in the table below. There is room in the store to stock at most 62 computers. The manager receives commissions on the sale of each computer in the amounts given in the table. If the manager can sell all of the computers, how many of each should she stock to maximize her commissions? InventoryIBMMacintoshMinimum1831Maximum3150Commission$50$40?
A. no IBM computers and 62 Macintosh computers: $1,922 B. 31 IBM computers and 50 Macintosh computers: $3,550 C. 31 IBM computers and 31 Macintosh computers: $2,790 D. none of these
Graph the ellipse.
+ (y - 2)2 = 1
A. 
B. 
C. 
D. 