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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?
Day 1
Day 2
Day 3
Day 4
Day 5
Day 6
Day 7
Day 8
Day 9
Day 10
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.
visibility
View drawing
Question 10
10.
"Source: Open Up Resouces (Download for free at openupresources.org.)"