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7.3.1

Last updated almost 2 years ago

8 questions

1

1

1

Question 3

3.

3. Diego made a graph of two quantities that he measured and said, "The points all lie on a line except one, which is a little bit above the line. This means that the quantities can't be proportional." Do you agree with Diego?

Yes, I agree with Diego. In order for a relationship to be proportional, every single point must be on the line.  No exceptions. 

No, I don't agree with Diego. As long as the graph goes through (0, 0) and most of the points are on the line, it is proportional. 

1

1

1

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Question 7

7.

Exit Ticket
1. The first graph shows the height of a plant after a certain amount of time measured in days.

Do you think that there may be a proportional relationship between the number of days and the height of the plant?

Yes, this may be a proportional relationship.  It looks like most of the points are on the line and it could go through (0, 0). 

No, this is not a proportional relationship. Some of the points are not on the line. 

1

Question 1

1.

1. Estimate the side length of a square that has a 9 cm long diagonal.

About 5.5cm

About 6.3cm

About 9cm

About 9.5cm

Question 2

2.

2. Select ALL quantities that are proportional to the diagonal length of a square.

a) Area of a square

b) Perimeter of a square.  

c) Side length of a square

Question 4

4.

4. The graph shows that while it was being filled, the amount of water in gallons in a swimming pool was approximately proportional to the time that has passed in minutes.
a) About how much water was in the pool after 25 minutes?

About 250 gallons

About 300 gallons

About 400 gallons

About 500 gallons

Question 5

5.

4b. Approximately when were there 500 gallons of water in the pool?

About 37-41 minutes

About 32-36 minutes

About 42-46 minutes

About 27-31 minutes

Question 6

6.

4c. Estimate the constant of proportionality for the number of gallons of water per minute going into the pool.

About 10

About 15

About 20

About 25

Question 8

8.

Exit Ticket
2. The second graph shows how much snow fell after a certain amount of time measured in hours.

Do you think that there may be a proportional relationship between the number of hours and the amount of snow that fell?

Yes, there may be a proportional relationship.  It looks like most of the points are on the line and it could go through (0, 0). 

No, this is not a proportional relationship. Some of the points are not on the line. 