Graphing Rational Functions — Unit test Answers
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1
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Which expression is equivalent to ? Assume .
A
StartFraction m Superscript 5 Baseline Over 162 n EndFraction
B
StartFraction 1 Over 2 m cubed n EndFraction
C
StartFraction 8 m Superscript 9 Baseline Over n Superscript 9 Baseline EndFraction
D
StartFraction 4 m Superscript 8 Baseline Over 3 n cubed EndFraction
2
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Which statement is true about the discontinuities of the function f(x)?
A
There are asymptotes at and .
B
There are holes at and .
C
There are asymptotes at and .
D
There are holes at and .
3
The inverse variation equation shows the relationship for a cruise ship’s travel between the rate of travel, x, and the time to travel, y for a distance of 600 miles. What is the rate of travel in miles per hour (mph) if the trip takes 24 hours?
A
2.5 mphB
25 mphC
144 mphD
14,400 mph4
Which expression is equivalent to ? Assume .
A
StartFraction x Superscript 10 Baseline y Superscript 14 Baseline Over 729 EndFraction
B
StartFraction x Superscript 22 Baseline Over 18 y Superscript 46 Baseline EndFraction
C
StartFraction 729 Over x Superscript 10 Baseline y Superscript 14 Baseline EndFraction
D
StartFraction 18 y Superscript 46 Baseline Over x Superscript 22 Baseline EndFraction
5
Blake simplified the expression to . Since this answer is incorrect, what was Blake’s mistake?
A
He added 5 to the exponent in the numerator instead of multiplying.B
He subtracted the exponents in the parentheses instead of dividing.C
He multiplied only the exponent in the numerator of the fraction by 5.D
He divided the exponents in the parentheses instead of subtracting.6
What is the product of ?
A
StartFraction 1 Over 625 EndFraction
B
StartFraction 1 Over 25 EndFraction
C
25D
1257
Which expression is equivalent to ? Assume .
A
StartFraction 5 Over x Superscript 12 Baseline y Superscript 30 Baseline EndFraction
B
StartFraction 1 Over 5 x Superscript 8 Baseline y Superscript 13 Baseline EndFraction
C
StartFraction 5 Over x Superscript 4 Baseline y Superscript 7 Baseline EndFraction
D
StartFraction y Superscript 7 Baseline Over 5 x Superscript 4 Baseline EndFraction
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