Understanding Functions and Time Inputs

Understanding Functions and Time Inputs

Assessment

Interactive Video

Mathematics

9th - 12th Grade

Hard

Created by

Emma Peterson

FREE Resource

The video tutorial explains the function P(t), which represents the number of people at Copacabana beach at a given time past midnight. It focuses on interpreting the statement P(5) < P(9), meaning there are fewer people at 5 a.m. than at 9 a.m. The tutorial addresses common misconceptions, emphasizing that the numbers 5 and 9 refer to hours, not the number of people. It concludes by confirming the correct interpretation that more people are present at 9 a.m. than at 5 a.m.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the function P(t) represent in the context of the video?

The distance from Rio de Janeiro.

The number of people at a specific location at a given time.

The temperature at Copacabana beach.

The number of hours past midnight.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the statement P(5) < P(9) imply?

The beach is more crowded at 5 a.m.

There are more people at 5 a.m. than at 9 a.m.

There are fewer people at 5 a.m. than at 9 a.m.

The beach is closed at 5 a.m.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do the numbers 5 and 9 represent in the function P(t)?

The time in hours past midnight.

The number of people at the beach.

The temperature in degrees.

The distance in kilometers.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the statement '5 a.m. is earlier than 9 a.m.' not relevant to the problem?

Because it is about a different beach.

Because it is about a different day.

Because it is incorrect.

Because it does not provide information about the number of people.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What conclusion can be drawn from the statement P(5) < P(9)?

The beach is more crowded at 5 a.m.

The beach is closed at 9 a.m.

There are fewer people at 9 a.m. than at 5 a.m.

More people are at the beach at 9 a.m. than at 5 a.m.