AnswersEBR - Algebra II B ICUnit Test

Unit Test — Unit test Answers

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1
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Simplify .a.c.7b.d.6

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A
A
B
B
C
C
D
D
2
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Evaluate. a. c. -9 b. 91 d. Please select the best answer from the choices provided

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A
A
B
B
C
C
D
D
3

Simplify .a.c.b.d.

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A
A
B
B
C
C
D
D
4

For what value of x does ?

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A
1
B
2
C
4
D
5
5

Which function has a horizontal asymptote of y = 3?

f
f(x) = 3(2x)
f
f(x) = 2(4)x–3
f
f(x) = 2(3x)
f
f(x) = 2(4x) + 3
6

Which expression is equivalent to ?

Question illustration
A
mc022-2.jpg
Option A
B
mc022-3.jpg
Option B
C
mc022-4.jpg
Option C
D
mc022-5.jpg
Option D
7

Which function is shown in the graph below?

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
8

Which expression is equivalent to ?

Question illustration
A
mc004-2.jpg
Option A
B
mc004-3.jpg
Option B
C
mc004-4.jpg
Option C
D
mc004-5.jpg
Option D
9

A scientist has 100 milligrams of a radioactive element. The amount of radioactive element remaining after t days can be determined using the equation . After three days, the scientist receives a second shipment of 100 milligrams of the same element. The equation used to represent the amount of shipment 2 remaining after t days is . After any time, t, the mass of the element remaining in shipment 1 is what percentage of the mass of the element remaining in shipment 2?

Question illustration
A
78.1%
B
81.2%
C
123.1%
D
128.0%
10

If , what is the value of x?

Question illustration
A
–3
B
–2
C
2
D
3
11

For what values of x does ?

Question illustration
A
x = –3, x = 1
B
x = –1, x = 3
C
x = negative three-halves, x = 2
Option C
D
x = negative 2, x = three-halves
Option D
12

If , what is the value of x?

Question illustration
A
Five-eighths
Option A
B
Eight-fifths
Option B
C
2
D
8
13

Which is the simplified form of ? Assume .

Question illustration
A
StartFraction b cubed Over 8 a Superscript 18 Baseline EndFraction
Option A
B
StartFraction b squared Over 8 a Superscript 45 Baseline EndFraction
Option B
C
StartFraction a Superscript 6 Baseline Over 4 b EndFraction
Option C
D
StartFraction 2 a Superscript 6 Baseline Over b Superscript 5 Baseline EndFraction
Option D
14

Which expression is equivalent to ?

Question illustration
A
Negative 4 x Superscript 4 Baseline y Superscript 6
Option A
B
Negative 8 x Superscript 4 Baseline y Superscript 6
Option B
C
StartFraction 4 x Superscript 4 Baseline Over y Superscript 6 EndFraction
Option C
D
StartFraction 8 x Superscript 4 Baseline Over y Superscript 6 Baseline EndFraction
Option D
15

An equation for the depreciation of a car is given by y = A(1 – r)t, where y = current value of the car, A = original cost, r = rate of depreciation, and t = time, in years. The current value of a car is $12,282.50. The car originally cost $20,000 and depreciates at a rate of 15% per year. How old is the car?

A
years
Option A
B
years
Option B
C
3 years
D
4 years

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