Unit Test — Unit test Answers
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21
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Where are the vertical asymptotes for the following function located?
A
x = –4 and x = 6B
x = –4 and x = 7C
x = 4 and x = –6D
x = 6 and x = 722
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The increase in a person’s body temperature T(t), above 98.6ºF, can be modeled by the function , where t represents time elapsed. What is the meaning of the horizontal asymptote for this function?
A
The horizontal asymptote of y = 0 means that the person’s temperature will approach 98.6ºF as time elapses.B
The horizontal asymptote of y = 0 means that the person’s temperature will approach 0ºF as time elapses.C
The horizontal asymptote of y = 4 means that the person’s temperature will approach 102.6ºF as time elapses.D
The horizontal asymptote of y = 4 means that the person’s temperature will approach 4ºF as time elapses.23
Max can mow a lawn in 45 minutes. Jan takes twice as long to mow the same lawn. If they work together, the situation can be modeled by the following equation, where t is the number of minutes it would take to mow the lawn together.How long will it take Maxine and Jan to mow the lawn together?
A
30.0 minutesB
45.0 minutesC
67.5 minutesD
135.0 minutes24
Which expression is equivalent to ?
A
StartFraction m minus 4 Over (m + 4) (m + 2) EndFraction
B
StartFraction (m + 4) (m + 2) Over m minus 4 EndFraction
C
StartFraction (m minus 4) (m + 2) Over m + 4 EndFraction
D
StartFraction m + 4 Over (m minus 4) (m + 2) EndFraction
25
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
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