Is it a Function?
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Objective
I can determine if a relation is a function using the vertical line test.
Part 1 of 4
Warm-up video
mathantics · 11:34Vetted channel
We don't generate video — this one is by mathantics on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 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.
Part 3 of 4
Practice
7 questions
What is a function in mathematical terms?
What are the names given to the input and output sets of a function?
Part 4 of 4
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.”
Sample answer included in the free materials
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Teacher Guide
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