Does this graph represent a function? Justify.

Yes; it passes the Vertical Line Test, Yes; there are no repeating x-values

Does this graph represent a function? Justify.

Yes; there are no repeating x-values, Yes; it passes the Vertical Line Test

Why was Table B a function but Table A was not a function?

Because Table A had repeating x values

How did you know that this graph was discrete?

The graph is a series of Distinct Dots

How would you write the domain and range for this graph?

An inequality written in the form -1 ≤ x ≤ 1

How would you write the domain and range for this graph?

As a list of numbers inside curly brackets {}

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Duplicate of Algebra I Quiz - Functions Basics

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A review of function basics, including domain/range, discrete/continuous, "Is it a function," and function notation (takes about 30 mins.) #algebra1 #functions #functionnotation

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Questions 24

Answers

1
State the range of this graph.
R: (1, 2, 3, 4, 5, 6)
R: {-1, 0, 1, 2, 3, 6)
1 ≤ y ≤ 6
-1 ≤ y ≤ 6
2
In the function notation f(1) = 3, which number is the x-value and which is the y-value?
x = 3 and y = 1
x = 1 and y = 3
It can go either way
x = 1, but also x = 3. y is an illusion
3
Is this graph discrete or continuous? (You have 10 seconds!)
Discrete
Continuous
4
Given f(x) = 3x - 2 and f(x) = -5, find x.
x = 8
x = -1
x = 0
x = -8
5
Does this graph represent a function? Justify.
Yes; it passes the Vertical Line Test
No; it fails the Vertical Line Test
No; there are repeating x-values
Yes; there are no repeating x-values
6
Givenf(x) = 2, find x.
x = 2
x = -2
x = 0
x = -4
7
Given f(x) = 3x - 2 and f(x) = 4, find x.
x = 4
x = -2
x = 2
x = 10
8
Find f(5).
f(5) = 0
f(5) = 1
f(5) = -1
f(5) = 3
9
State the range of this graph.
R: (-2, -1, 0, 1, 2)
-4 ≤ y ≤ -1
R: {-4, -3, -2, -1)
-2 ≤ y ≤ 2
10
Does this graph represent a function? Justify.
No; it fails the Vertical Line Test
No; there are repeating x-values
Yes; there are no repeating x-values
Yes; it passes the Vertical Line Test
11
Which table below represents a function?
Both
Table A
Neither
Table B
12
Why was Table B a function but Table A was not a function?
Because Table B started at 1
Because B is better than A.
Because Table A had repeating x values
Because Table A had a 2 and 3 in the x and y columns
13
Given f(x) = 3x - 2, find f(4).
f(4) = 10
f(4) = 4
f(4) = -2
f(4) = 2
14
When given f(x) = 2, which variable are you given?
y
f
z
x
15
Find f(-3)
f(-3) = -1
f(-3) = 3
f(-3) = -3
f(-3) = 1
16
Find f(3).
f(3) = 1
f(3) = 0
f(3) = 3
f(3) = -1
17
How did you know that this graph was discrete?
It passed the Vertical Line Test.
The graph is a Connected line
No x-value was repeated
The graph is a series of Distinct Dots
18
How did you know that this graph was continuous?
It passed the Vertical Line Test.
No x-value was repeated
The graph is a Connected line
The graph is a series of Distinct Dots
19
How would you write the domain and range for this graph?
An inequality written in the form -1 ≤ x ≤ 1
As a list of numbers inside curly brackets {}
A set of ordered pairs
An inequality written in the form x = 5
20
State the domain of this graph.
1 ≤ x ≤ 6
-1 ≤ x ≤ 6
D: {-1, 0, 1, 2, 3, 6)
D: (1, 2, 3, 4, 5, 6)
21
How would you write the domain and range for this graph?
As a list of numbers inside curly brackets {}
An inequality written in the form x = 5
A set of ordered pairs
An inequality written in the form -1 ≤ x ≤ 1
22
Is this graph discrete or continuous? (You have 10 seconds!)
Continuous
Discrete
23
State the domain of this graph.
-2 ≤ x ≤ 2
-4 ≤ x ≤ -1
D: {-4, -3, -2, -1)
D: (-2, -1, 0, 1, 2)
24
Given f(x) = 3x - 2, find f(-2).
f(-2) = -4
f(-2) = 0
f(-2) = 8
f(-2) = -8

Duplicate of Algebra I Quiz - Functions Basics Flashcards | StudBud