Algebra 1 - Unit 2 Vocabulary is a Grade 9 mathematics worksheet that reinforces the language students need to describe relations and functions. Through 17 multiple-choice questions, students identify domain, range, relations, functions, independent and dependent variables, inputs and outputs, function rules, solution sets, and the vertical line test. They also distinguish continuous functions from discrete functions.
This free printable worksheet helps students connect precise definitions to the notation and representations used in early Algebra 1. The multiple-choice format provides a focused vocabulary check before students evaluate graphs, tables, equations, and function rules in greater depth. Use it for independent practice, review, intervention, or a quick formative assessment. A complete answer key is included to support efficient checking and feedback.
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Algebra 1 - Unit 2 Vocabulary
Total questions: 17
Name
Class
Date
1.
the set of output (y) values in a relation
a)
domain
b)
range
c)
relation
d)
function
2.
the set of (x) values in a relation
a)
domain
b)
range
c)
relation
d)
function
3.
a special relation which each input has exactly one output
a)
function
b)
domain
c)
range
d)
relation
4.
a set of ordered pairs
a)
domain
b)
range
c)
function
d)
relation
5.
the variable that can be manipulated
a)
Independent Variable
b)
Dependent Variable
c)
Function Notation
d)
Ordered Pairs
6.
the variable that depends on another value
a)
Ordered Pairs
b)
Function Notation
c)
Dependent Variable
d)
Independent Variable
7.
a)
Vertical Line Test
b)
Ordered Pairs
c)
Mapping Diagram
d)
Function Notation
8.
a)
Mapping Diagrams
b)
Ordered Pairs
c)
Function Table
d)
Vertical Line Test
9.
a)
Ordered Pairs
b)
Mapping Diagrams
c)
Function Table
d)
Relation
10.
a)
Function Notation
b)
Ordered Pairs
c)
Mapping Diagrams
d)
Function Table
11.
if all vertical lines intersect the graph no more than once
a)
Input
b)
Output
c)
Horizontal Line Test
d)
Vertical Line Test
12.
convert an input value (x) into an output value (y) for a given function
a)
Ms. Chadwick's rule
b)
Function Rule
c)
Relation Rule
d)
Ms. Blake's rule
13.
information that is "put in" to something
a)
output
b)
solution
c)
input
d)
y values
14.
what comes out of something
a)
x values
b)
input
c)
domain
d)
output
15.
all the solutions of an equation or inequality
a)
ordered pair
b)
function table
c)
horizontal line test
d)
solution set
16.
functions whose values are continuous or unbroken over specific domain; connected line; measured
a)
Contunious Function
b)
Discrete Function
c)
Broken Function
d)
Connected Function
17.
functions whose values are distinct and seperated; not connected; counted
a)
Counted Function
b)
Continuous Function
c)
Connected Function
d)
Discrete Function
Answer Key
Algebra 1 - Unit 2 Vocabulary
Total questions: 17
1.
b)
range
2.
a)
domain
3.
a)
function
4.
d)
relation
5.
a)
Independent Variable
6.
c)
Dependent Variable
7.
d)
Function Notation
8.
a)
Mapping Diagrams
9.
c)
Function Table
10.
b)
Ordered Pairs
11.
d)
Vertical Line Test
12.
b)
Function Rule
13.
c)
input
14.
d)
output
15.
d)
solution set
16.
a)
Contunious Function
17.
d)
Discrete Function
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FAQs
What does the Algebra 1 Unit 2 Vocabulary worksheet cover?
This Grade 9 mathematics worksheet uses 17 multiple-choice questions to assess vocabulary for relations and functions. Students distinguish domain from range, identify inputs and outputs and independent versus dependent variables, recognize function rules and solution sets, apply the vertical line test terminology, and differentiate continuous from discrete functions.
How can I use this worksheet to teach relations and functions?
Introduce each term with a simple relation, ordered-pair set, or function example, then have students explain why the definition matches the term before completing the multiple-choice items. Afterward, ask students to connect vocabulary such as domain, range, input, output, and vertical line test to a graph or function rule so the worksheet definitions become tools for interpreting representations.
What mistakes should I watch for on this functions vocabulary worksheet?
Students commonly reverse domain and range, or confuse an input with its output and an independent variable with a dependent variable. Watch for confusion between a relation and a function, especially when identifying whether each input has exactly one output, and check that students do not substitute the horizontal line test for the vertical line test. Continuous and discrete functions may also be mixed up because one describes connected values while the other describes separated, counted values.
How do I assign and grade this Algebra 1 vocabulary worksheet?
The worksheet is available as a printable PDF and as a digital quiz on Wayground, so you can assign the 17 multiple-choice questions in the format that fits your lesson. It includes a complete answer key, and printable submissions can be graded by scanning student work with the Wayground for Teachers app. The PDF option can also support classrooms that are reducing screen time.
How can I differentiate this relations and functions vocabulary worksheet?
Use the worksheet’s Advanced Settings to increase font size or adjust font spacing when students need more room to read and compare the multiple-choice definitions. You can also apply a dyslexia-friendly font or translate the vocabulary worksheet into another language, which may help students access terms such as domain, range, continuous, and discrete.
Where can I find more worksheets like this on Wayground?
Wayground offers a broad collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to help students master essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.