Using Function Notation

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Objective

I can interpret and write statements using function notation to represent specific inputs and outputs in a given situation.

Part 1 of 3

Warm-up video

Khan Academy · 3:23Vetted channel

We don't generate video — this one is by Khan Academy 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

1

If f(x) represents the temperature in degrees Celsius at time x (measured in hours), what does the statement f(5) = 20 mean?

2

Let C(n) represent the cost in dollars to produce n number of items. Explain the meaning of C(100) = 500 in the context of this function.

Part 3 of 3

Exit ticket

Quick comprehension check

Let C(t) represent the number of customers in a store t hours after it opens. What does the statement C(4) = 25 mean? Suppose P(a) represents the profit (in dollars) a company makes when selling 'a' amount of items. Explain the meaning of P(50) = 1000 in the context of this function. A function H(x) gives the height of a plant (in centimeters) x weeks after it was planted. Write a statement using function notation that represents "The plant was 10 cm tall after 3 weeks."

Sample answer included in the free materials

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