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Exponential Function Basics Flashcards | StudBud
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Exponential Function Basics
Exponential Function Basics
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A #math quiz to introduce #exponentialfunctions basics to #algebra students.
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
What behavior does this graph model?
Exponential growth
Linear decay
Exponential decay
Linear growth
2
In the standard form of an exponential function, what does the
a
stand for?
rate or multiplier
0>b>1
initial value
b>1
3
What does the given function model? f(x)=2(10/2)
x
Linear growth
Exponential growth
Exponential decay
Linear decay
4
Evaluate the function for f(-5) if f(x)=x
2
-100.
75
-75
125
-125
5
What does the given function model? f(x)=2(0.25)
x
Exponential growth
Linear decay
Linear growth
Exponential decay
6
Evaluate the function for f(-3) if f(x)=2(3)
x
.
27
54
2/27
1/27
7
Evaluate the function for f(2) if f(x)=x
2
+2x+5
8
13
7
9
8
Evaluate the function for f(4) if f(x)=3
x
.
3
9
27
81
9
How can you tell if an equation is exponential decay?
0<b<1
b>1
a>1
0<a<1
10
After 50 minutes, how many computers will be infected?
1,215 computers
25 computers
3,589,489 computers
15 computers
11
Which of the following equations is exponential?
f(x)=x2+5
f(x)=2x+1
f(x)=x3+2x+5
f(x)=2(5)x
12
An exponential function is a function that has an input value (x) that is _________________.
between 0 and 1
squared
raised to the first power
an exponent
13
What type of function is this graph?
Linear
None of the above
Quadratic
Exponential
14
How can you tell if an equation is exponential growth?
b>1
a>1
0<a<1
0<b<1
15
In the standard form of an exponential function, what does the
b
stand for?
initial value
0>b>1
rate or multiplier
b>1
16
What is the standard form of an exponential function?
y=mx+b
(y-y1)=m(x-x1)
f(x)=bx
f(x)=a(b)x
17
The radioactivity level has a half life of 1 minute. What is the level at 5 seconds?
1
1.25
5
0.625
18
Write a function to model the following:
f(x)=10(3)x
f(x)=5(3)x
f(x)=5(10)x
f(x)=3(5)x
19
What behavior does the graph model?
Exponential decay
Linear growth
Exponential growth
Linear decay
20
Which function models the table?
f(x)=3(4)x
f(x)=3x
f(x)=4(3)x
f(x)=4x
21
What does the given function model? f(x)=0.5(5)
x
Exponential growth
Linear decay
Linear growth
Exponential decay
