Is it a Function?
Grade 9th Grade · Math · 45 min
What's Included
Learning Objective
I can determine if a relation is a function using the vertical line test.
Warm-Up Video
mathantics · 11:34
Algebra Basics: What Are Functions? - Math Antics
Guided Notes
3 key concepts
- 1
In math, a function relates or connects one set to another set in a particular way, where a set is a group or collection of things.
- 2
The input set of a function is called the domain, and the output set is called the range; these can be shown in a function table.
- 3
A function must produce only one output value for each input value; this can be tested visually using the vertical line test.
Practice Questions
7 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“The graph of a relation is shown. Draw a vertical line on the graph. Does the relation pass the vertical line test? Is the relation a function? Explain why or why not.”
Complete Lesson Package
Get all 3 ready-to-use resources:
