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Open Up - Grade 8 - Mathematics - Unit 5 - Lesson 4

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Last updated 11 months ago
10 questions
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Question 1
1.

The graph and the table show the high temperatures in a city over a 10-day period.

What was the high temperature on Day 7?

Question 2
2.

The graph and the table show the high temperatures in a city over a 10-day period.

What was the high temperature on Day 7?

Question 3
3.

The graph and the table show the high temperatures in a city over a 10-day period.

On which days was the high temperature 61 degrees?

Question 4
4.

The graph and the table show the high temperatures in a city over a 10-day period.

Is the high temperature a function of the day? Explain how you know.

Question 5
5.

The graph and the table show the high temperatures in a city over a 10-day period.

Is the day a function of the high temperature? Explain how you know.

Question 6
6.

The amount Lin’s sister earns at her part-time job is proportional to the number of hours she works. She earns $9.60 per hour.

Write an equation in the form y=kx to describe this situation, where represents the hours she works and y represents the dollars she earns.

Question 7
7.

The amount Lin’s sister earns at her part-time job is proportional to the number of hours she works. She earns $9.60 per hour.

Is y a function of x? Explain how you know.

Question 8
8.

The amount Lin’s sister earns at her part-time job is proportional to the number of hours she works. She earns $9.60 per hour.

Write an equation describing x as a function of y.

Question 9
9.

Use the equation 2m+4s=16 to complete the table, then graph the line using s as the dependent variable.

Question 10
10.

"Source: Open Up Resouces (Download for free at openupresources.org.)"