Modeling with Rational Functions — Unit test Answers
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21
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What is the product?
A
StartFraction 4 n Over n + 1 EndFraction
B
StartFraction n Over n + 1 EndFraction
C
StartFraction 1 Over n + 1 EndFraction
D
StartFraction 4 Over n + 1 EndFraction
22
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The equation shows that the density of a particular substance equals a mass of 13 grams divided by the volume of the substance. What happens to the density as the volume approaches 0?
A
The density approaches infinity.B
The density approaches 0.C
The density approaches 1.D
The density approaches 13.23
Which expression is equivalent to the following complex fraction?
A
StartFraction negative 2 y + 5 x Over 3 x minus 2 y EndFraction
B
StartFraction 3 x minus 2 y Over negative 2 y + 5 x EndFraction
C
StartFraction x squared y squared Over (negative 2 y + 5 x) (3 x minus 2 y) EndFraction
D
StartFraction (negative 2 y + 5 x) (3 x minus 2 y) Over x squared y squared EndFraction
24
What is the difference?
A
StartFraction 2 (x + 6) Over (x + 4) (x minus 4) EndFraction
B
StartFraction negative 2 (x + 6) Over (x + 4) (x minus 4) EndFraction
C
StartFraction x minus 3 Over (x + 5) (x minus 4) EndFraction
D
StartFraction negative 2 (x minus 6) Over (x + 4) (x minus 4) EndFraction
25
What are the equations of the asymptotes of the graph of the function ?
A
x = –5, x = 2 and y = 3B
x = –2, x = 5 and y = 3C
x = 3, y = –5, and y = 2D
x = 3, y = –2, and y = 5Did you find these answers helpful?
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