Sketch the graph of the line by locating the second point with the rise-and-run method.Through (0, 2), m = - 
A. 
B. 
C. 
D. 
Answer: A
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Solve the system by using the inverse of the coefficient matrix.-2x + y + 3z - w = 14-x - 4y + z - 4w = 12-4x + 3y - 2z + w = 43x - y - z - 4w = 3
A. {(-2, -1, -2, 3)} B. {(-4, 2, 3, -5)} C. ? D. {(-2, 1, 2, -3)}
Express the following using negative exponents.
A. 4-x+1 B. 4-x C. x-4 D. x4
Find the center, transverse axis, vertices, foci, and asymptotes of the hyperbola.100y2 - 81x2 = 8100
A. center at (0, 0)
transverse axis is y-axis
vertices at (0, -9) and (0, 9)
foci at (0, - 
) and (0, 
)
asymptotes of y = - 
and y = 
B. center at (0, 0)
transverse axis is x-axis
vertices: (-10, 0), (10, 0)
foci: (- 
, 0) , (
, 0)
asymptotes of y = - 
and y = 
C. center at (0, 0)
transverse axis is x-axis
vertices: (-9, 0), (9, 0)
foci: (-10, 0), (10, 0)
asymptotes of y = - 
and y = 
D. center at (0, 0)
transverse axis is y-axis
vertices: (0, -9), (0, 9)
foci: (- 
, 0) , (
, 0)
asymptotes of y = - 
and y = 
Solve the problem.In a certain animal species, the probability that a female will have 0, 1, 2, 3, or 4 offspring in a given year is .31, .21, .19, .17, and .12 respectively. Find the expected number of offspring.
A. 2 B. 1.38 C. 1.75 D. 1.58