Find the exact value. If any are not defined, write undefined.cot(-90°)
A. Undefined
B. 0
C. -1
D. 
Answer: B
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Use words such as linear, quadratic, cubic, polynomial, degree, one variable, and two variables to describe the expression.-7x3 + 3x2 - 8x - 9
A. seventh-degree polynomial in one variable B. cubic polynomial in three variables C. cubic polynomial in one variable D. fourth-degree polynomial in one variable
Find the center, transverse axis, vertices, foci, and asymptotes of the hyperbola.49y2 - 16x2 = 784
A. center at (0, 0)
transverse axis is y-axis
vertices: (0, -4), (0, 4)
foci: (- 
, 0) , (
, 0)
asymptotes of y = - 
and y = 
B. center at (0, 0)
transverse axis is y-axis
vertices at (0, -4) and (0, 4)
foci at (0, - 
) and (0, 
)
asymptotes of y = - 
and y = 
C. center at (0, 0)
transverse axis is x-axis
vertices: (-7, 0), (7, 0)
foci: (- 
, 0) , (
, 0)
asymptotes of y = - 
and y = 
D. center at (0, 0)
transverse axis is x-axis
vertices: (-4, 0), (4, 0)
foci: (-7, 0), (7, 0)
asymptotes of y = - 
and y = 
Find the foci and asymptotes of the hyperbola.
- 
= 1
A. (-14, 5), (16, 5); y = 
x + 
, y = - 
x + 
B. (5, -14), (5, 16); y = 
x - 
, y = - 
x - 
C. (-11, 5), (13, 5); y = 
x - 
, y = - 
x - 
D. (5, -11), (5, 13); y = - 
x - 
, y = 
x - 
Simplify.
A. 
B. 
C. - 
D. 