What is a Function?
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Objective
I can look at descriptions and graphs to understand how two things are related as a function, and name the independent and dependent variables.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel 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 3
Practice
7 questions
If a function machine multiplies every input by 7, what is the output when the input is 3?
Explain in your own words why a function can only have one output for each input. Give an example of a relationship that is NOT a function.
Part 3 of 3
Exit ticket
Quick comprehension check
“A plant grows 2 cm each week. The number of weeks is the input, and the plant's height is the output. What is the independent variable and what is the dependent variable? A machine puts 3 candies in each bag. The number of bags is the input, and the number of candies is the output. What is the independent variable and what is the dependent variable? The temperature rises 1°C every hour. The number of hours is the input, and the temperature is the output. What is the independent variable and what is the dependent variable?”
Sample answer included in the free materials
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