Identifying Functions
Learning Objective
I can identify functions from graphs, tables, and other representations.
Lesson Flow
Watch Video
GED Math – Determine Functions!
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Guided Notes
Key concepts students will learn:
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In a function, each input (x-value) should produce only one output (y-value), like a vending machine that dispenses the same item each time you press the same button.
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If a vertical line drawn on a graph intersects the graph at more than one point, then the graph does not represent a function.
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To keep a table a function, if an x-value repeats, it must have the same y-value.
Practice
3 questions • Multiple choice & Short answer
Exit Ticket
“Which of the following tables represents a function? Explain why. A) {(-1, 2), (0, 5), (1, 2), (2, 8)} B) {(3, 4), (3, 5), (6, 7), (8, 9)} C) {(1, 5), (2, 6), (3, 7), (1, 8)}”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
