Vertical Asymptotes of Rational Functions — Unit test Answers
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21
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Which solution to the equation is extraneous?
A
x = 1 and x = –4B
neither x = 1 or x = –4C
x = 1D
x = –422
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What is the solution to the equation ?
A
d = –4 and d = 2B
d = –2 and d = 4C
d = 1D
d = 223
Which statement is true about the discontinuities of the function f(x)?
A
There are holes at x = 7 and .
B
There are asymptotes at x = 7 and .
C
There are asymptotes at x = –7 and .
D
There are holes at (–7, 0) and .
24
Which graph represents ?
A
On a coordinate plane, a cubic function has a point of inflection at x = 0 and crosses the x-axis at x = 5.
B
On a coordinate plane, a cubic function has a point of inflection at x = negative 5 and crosses the x-axis at x = 2.
C
On a coordinate plane, a cubic function has a point of inflection at y = negative 5 and crosses the x-axis at y = negative 5.
D
On a coordinate plane, a cubic function has a point of inflection at x = 5 and crosses the x-axis at x = 5.
25
What is the domain of the function ?
A
Negative infinity less-than x less-than infinity
B
0 less-than-or-equal-to x less-than infinity
C
3 less-than-or-equal-to x less-than infinity
D
6 less-than-or-equal-to x less-than infinity
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