B_W3: Quiz #1
Graphing Exponential Growth & Decay (15 questions)
1.
Which of the following is an example of an exponential function?
A.
f(x) = 4
B.
f(x) = 4x
C.
D.
f(x) = 6x
2.
Which of the following is an exponential decay function?
A.
B.
C.
D.
3.
The graph of has _______.
A.
an asymptote at x = 0.
B.
no asymptotes.
C.
an asymptote at y = 0.
D.
an asymptote at y = x.
4.
The graph of shifts the graph of _______ .
A.
left 1 unit
B.
right 1 unit
C.
up 1 unit
D.
down 1 unit
5.
Which exponential function matches the graph?
A.
B.
C.
D.
6.
Which is the graph of ?
A.
B.
C.
D.
7.
Which is the graph of ?
A.
B.
C.
D.
8.
Which exponential function matches the graph?
A.
B.
C.
D.
9.
What is the equation of the following graph?
A.
f(x) = 2x + 2
B.
f(x) = 2x - 2
C.
f(x) = 2x - 2
D.
f(x) = 2x + 2
10.
What is the equation of the following graph?
A.
f(x) = 2x + 7
B.
f(x) = 2x - 7
C.
f(x) = 2x - 7
D.
f(x) = 2x + 7
11.
What is the transformation that occurs to the equation y = 2x if it changes to y = 2x + 5?
A.
The graph moves 5 units to the left.
B.
The graph moves 5 units to the right.
C.
The graph moves 5 units down.
D.
The graph moves 5 units up.
12.
What is the transformation that occurs to the equation y = 2x if it changes to y = 2x-3?
A.
There is a transformation of 3 units to the right.
B.
There is a transformation of 3 units to the left.
C.
There is a transformation of 3 units up.
D.
There is a transformation of 3 units down.
13.
What is the transformation that occurs to the parent function if the equation changes to ?
A.
The graph moves 1 unit up.
B.
The graph reflects across the y-axis.
C.
The graph reflects across the x-axis.
D.
The graph moves 1 unit down.
14.
What is the transformation that occurs to the equation y = 2x if the equation changes to y = 2x-3 + 4?
A.
The transformation moves the graph 3 units to the right and 4 units down.
B.
The transformation moves the graph 3 units to the left and 4 units up.
C.
The transformation moves the graph 3 units to the left and 4 units down.
D.
The transformation moves the graph 3 units to the right and 4 units up.
15.
What is the transformation that occurs to the equation y = 2x if it changes to y = -2x – 2?
A.
The graph is reflected across the y-axis and moves 2 units up.
B.
The graph is reflected across the x-axis and moves 2 units up.
C.
The graph is reflected across the x-axis and moves 2 units down.
D.
The graph is reflected across the y-axis and moves 2 units down.
B_W3 Quiz #2
Solving Exponential Equations (10 questions)
1. Determine the value for the "?" 4?=64
A.
16
B.
3
C.
4
D.
12
2. Solve 3x+1 = 37
A.
x = 3
B.
x = 7
C.
x = 6
D.
x = 1
3. Solve:
A.
x = -4
B.
x = -2
C.
x = -5
D.
x = -10
4. What is the next step in t ...
1. B_W3: Quiz #1
Graphing Exponential Growth & Decay (15 questions)
1.
Which of the following is an example of an exponential
function?
A.
f(x) = 4
B.
f(x) = 4x
C.
D.
f(x) = 6x
2.
Which of the following is an exponential decay function?
A.
B.
C.
D.
2. 3.
The graph of has _______.
A.
an asymptote at x = 0.
B.
no asymptotes.
C.
an asymptote at y = 0.
D.
an asymptote at y = x.
4.
The graph of shifts the graph of _______ .
A.
left 1 unit
B.
right 1 unit
C.
up 1 unit
D.
down 1 unit
5.
Which exponential function matches the graph?
4. 7.
Which is the graph of ?
A.
B.
C.
D.
8.
Which exponential function matches the graph?
A.
B.
C.
D.
5. 9.
What is the equation of the following graph?
A.
f(x) = 2x + 2
B.
f(x) = 2x - 2
C.
f(x) = 2x - 2
D.
f(x) = 2x + 2
10.
What is the equation of the following graph?
A.
f(x) = 2x + 7
B.
f(x) = 2x - 7
C.
f(x) = 2x - 7
D.
6. f(x) = 2x + 7
11.
What is the transformation that occurs to the equation y = 2x if
it changes to y = 2x + 5?
A.
The graph moves 5 units to the left.
B.
The graph moves 5 units to the right.
C.
The graph moves 5 units down.
D.
The graph moves 5 units up.
12.
What is the transformation that occurs to the equation y = 2x if
it changes to y = 2x-3?
A.
There is a transformation of 3 units to the right.
B.
There is a transformation of 3 units to the left.
C.
There is a transformation of 3 units up.
D.
There is a transformation of 3 units down.
13.
7. What is the transformation that occurs to the parent function if
the equation changes to ?
A.
The graph moves 1 unit up.
B.
The graph reflects across the y-axis.
C.
The graph reflects across the x-axis.
D.
The graph moves 1 unit down.
14.
What is the transformation that occurs to the equation y = 2x if
the equation changes to y = 2x-3 + 4?
A.
The transformation moves the graph 3 units to the right and 4
units down.
B.
The transformation moves the graph 3 units to the left and 4
units up.
C.
The transformation moves the graph 3 units to the left and 4
units down.
D.
The transformation moves the graph 3 units to the right and 4
units up.
15.
What is the transformation that occurs to the equation y = 2x if
it changes to y = -2x – 2?
8. A.
The graph is reflected across the y-axis and moves 2 units up.
B.
The graph is reflected across the x-axis and moves 2 units up.
C.
The graph is reflected across the x-axis and moves 2 units
down.
D.
The graph is reflected across the y-axis and moves 2 units
down.
B_W3 Quiz #2
Solving Exponential Equations (10 questions)
1. Determine the value for the "?" 4?=64
A.
16
B.
3
C.
4
D.
12
2. Solve 3x+1 = 37
A.
9. x = 3
B.
x = 7
C.
x = 6
D.
x = 1
3. Solve:
A.
x = -4
B.
x = -2
C.
x = -5
D.
x = -10
4. What is the next step in the problem below?
A.
x - 2 = 32
B.
2 (x-2) = 32
C.
x - 2 = 5
5.
Solve for x:
10. A.
B.
C.
D.
6. Solve: 52x−5=125
A.
x = 4
B.
x = -1
C.
x = 15
D.
x = 65
7. You invest $200 into an account that doubles your money
every 3 years. How much money will you have in the account
after 12 years?
A.
$1,600
B.
$800
C.
$3,200
D.
11. $6,400
8. You are given $5,000 that you put in a fund for 6 years that
will pay 4% interest compounded each year. Using the formula,
, which of the following equations shows the correct set up of
the situation?
A.
f(t)=6⋅ (1+5,000)0.04
B.
f(t)=5,000⋅ (1+6)0.04
C.
f(t)=6⋅ (1+0.04)5,000
D.
f(t)=5,000⋅ (1+0.04)6
9. You invest $2,000 into an account that earns 1.5% interest
compounded each year for 7 years. How much money will you
have in the account at the end of 7 years? Round to the nearest
dollar.
HINT: Use the formula, .
A.
$1,220,703
B.
$2,220
C.
$2,030
D.
$14,210
12. 10. A town currently has a population of 34,728. The population
of the town has been decreasing at a rate of 2.1% each year. If
this trend continues, what will the population be at the end of
10 years? Round to the nearest whole number.
HINT: Use the formula f(t)=
A.
28,087
B.
16,537
C.
33,999
