Quiz about Assessment 2 Review

Question 1

According to exponent rules, when we multiply powers we _______ the exponents.

Accepted Answer

add

Answer

subtract

Answer

multiply

Answer

divide

Question 2

According to exponent rules, when we divide powers we _______ the exponents.

Accepted Answer

subtract

Answer

add

Answer

multiply

Answer

divide

Question 3

According to exponent rules, when we raise a power to a power we _______ the exponents.

Accepted Answer

multiply

Answer

add

Answer

subtract

Answer

divide

Question 4

(c⁵)(c³)(c³)

Accepted Answer

c11

Answer

c45

Answer

3c11

Answer

3c45

Question 5

Simplify the expression in exponential form:
134⁰

Accepted Answer

1

Answer

0

Answer

134

Question 6

Simplify

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 7

Simplify:

Accepted Answer

x8y4

Answer

x6y4

Answer

x2y4

Answer

x8y

Question 8

Simplify:

Accepted Answer

x5

Answer

1/x5

Answer

x-5

Answer

x36

Question 9

Which expression is equivalent to $$\frac{x^2y^2z^2}{4y^4}$$ ?

Accepted Answer

$$\frac{x^2z^2}{4y^2}$$

Answer

$$4y^6$$

Answer

$$y^6$$

Answer

$$4x^2y^6z^2$$

Question 10

Question 10.

Accepted Answer

25/3

Answer

23/5

Answer

-23/5

Answer

85

Question 11

Simplify the following expression:

Accepted Answer

125

Answer

5

Answer

25

Answer

625

Question 12

Simplify:

Accepted Answer

8

Answer

2

Answer

16

Answer

32

Question 13

Write the expression in exponential form.

$$\sqrt[]{x}$$

Accepted Answer

$$x^{\frac{1}{2}}$$

Answer

$$\frac{1}{x^2}$$

Answer

$$x$$

Answer

$$x^2$$

Question 14

What is the equation that best represents the graph?

Accepted Answer

y=2x

Answer

y=2y

Answer

y=2-x

Answer

y=x2

Question 15

Is the pictured graph exponential growth, exponential decay, or linear or none?

Accepted Answer

Exponential Growth

Answer

Exponential Decay

Answer

Linear

Answer

None

Question 16

Given y=3^xdetermine the y-intercept

Accepted Answer

(0,1)

Answer

(0,3)

Answer

No Y-intercept

Answer

y=1

Question 17

Which of the following is an increasing exponential function whose y-intercept is 50?

Accepted Answer

y = 50(1.4)^x

Answer

y = 50(.05)^x

Answer

y = 50x - 4

Answer

y = (2)^x + 50

Question 18

What is the horizontal asymptote for the graph of

f(x)=13(0.5)^x?

Accepted Answer

y=0

Answer

y=0.5

Answer

y=13

Answer

y=6

Question 19

What is the horizontal asymptote for the graph of

f(x)=2(3)^x ?

Accepted Answer

y=0

Answer

y=2

Answer

y=3

Answer

x=-4

Question 20

What function is present?

Accepted Answer

Exponential Decay

Answer

Absolute Value

Answer

Linear Equation

Answer

Exponential Growth

Question 21

What type of function is present? f(x) = 2^x?

Accepted Answer

Exponential Growth

Answer

Linear Equation

Answer

Absolute Value

Answer

Exponential Decay

Question 22

Which graph is an exponential function?

Accepted Answer

red

Answer

blue

Answer

green

Answer

none

Question 23

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

Accepted Answer

y = 15(1.35)^x

Answer

y = 15(35)^x

Answer

y = 15(0.35)^x

Answer

y = 35(1.15)^x

Question 24

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

Accepted Answer

Decay

Answer

Growth

Question 25

In an exponential function, what does the 'a' represent?

Accepted Answer

Y-intercept/Initial value

Answer

Input

Answer

Rate of change

Answer

Output

Question 26

Is this exponential growth or decay?

Accepted Answer

Decay

Answer

Growth

Question 27

A new savings account is opened with $400 and gains 3% every year. What is the exponential function?

Accepted Answer

f(x)=400(1+0.03)^x

Answer

f(x)=400(1+3)^x

Answer

f(x)=400(1-0.03)^x

Answer

f(x)=400(0.03)^x

Question 28

Simplify:

(2x² - 2x + 3) + (3x² + 4x - 5)

Accepted Answer

5x²+ 2x - 2

Answer

7x - 7x + 5x²

Answer

5x2

Answer

5x² + 6x + 8

Question 29

Simplify:

(4n² - 8n + 4) - (8n² + 4n + 1)

Accepted Answer

-4n² - 12n + 3

Answer

12n² - 4n + 5

Answer

-4n²- 4n + 5

Answer

-7n² - 4n + 3

Question 30

Simplify the expression.

-3x²( 7x²- x + 4)

Accepted Answer

-21x⁴ + 3x³ -12x²

Answer

7x² - x + 4 (-3x²)

Answer

21x⁴+ 3x³+ 12x²

Answer

-12x²+ 3x³-21x⁴

Question 31

Evaluate: (x + y)(x + y)

Accepted Answer

$$x^{2\ }+2xy\ +\ y^2$$

Answer

$$2x\ +\ 2y$$

Answer

$$x^{2\ }+\ y^2$$

Answer

$$x^2\ _{\ }+\ 2x\ +\ 2y\ +\ y^2$$

Question 32

Evaluate: (2x - 1)(3x + 7)

Accepted Answer

$$6x^{2\ }+\ 11x\ -\ 7$$

Answer

$$5x^{2\ }+15x\ -\ 7$$

Answer

$$6x\ -\ 7$$

Answer

$$6x^2\ _{\ }+\ 17x-7$$

Question 33

Evaluate: $$\left(2r\ -\ 4\right)\left(7r^{2\ }-6r\ -\ 6\right)$$

Accepted Answer

$$14r^3\ -\ 40r^{2\ }+\ 12r\ +\ 24$$

Answer

$$14r^3\ -12r-\ 12$$

Answer

$$-28r^{\ 2}+24r\ +\ 24$$

Answer

$$14r^3\ -12r\ -28r^2\ +24$$

Question 34

Question 34.

Accepted Answer

x - 7

Answer

x2 - 7

Answer

x + 7

Answer

x²+ 3x - 54

Assessment 2 Review

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