Unit Test — Cumulative exam Answers
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What is the end behavior of the graph of the polynomial function f(x) = –x5 + 9x4 – 18x3?
A
As , and as , .
B
As , and as , .
C
As , and as , .
D
As , and as , .
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Which of the following represents a geometric sequence? I II III IV
A
IB
IIC
IIID
IV23
What are the values of x in the equation x2 – 6x + 9 = 25?
A
x = –2 or x = 8B
x = –1 or x = –11C
x = 1 or x = 11D
x = 2 or x = –824
Let a and b be real numbers where a b 0. Which of the following functions could represent the graph below?
A
f(x) = x(x – a)2(x – b)4B
f(x) = x(x – a)3(x – b)2C
f(x) = x4(x – a)(x – b)2D
f(x) = x2(x – a)5(x – b)25
The explicit rule for an arithmetic sequence is What is the value of the 47th term? Round to the nearest tenth, if necessary.
A
–55.7B
–26.4C
45.6D
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