Math 2: Chapter 2 SG

Name: ______

Date: ______Hour: ______

Target 1: I can represent a proportional relationship with a table.

1)The table shows a proportional relationship between x and y. Complete the table.

x / 3 / 4 / 5 / 6
y / 12 / 16 / 20 / 24
Ratio / ? / ? / / ?

2)The amount of time Mr. Kocourek spends studying and his test scores are shown in the table below. Complete the table and determine if the table represents a proportional relationship.

Test Scores
Hours Studying / 2 / 3 / 4
Test Score / 44 / 66 / 88
Ratio /

3)The table shows proportional relationship between x and y. Mr. Foley and Mrs. Patton have to complete the table. Mr. Foley incorrectly says the ratio of is . Complete the table. What error did Mr. Foley likely make? (2 point question)

x / y / Ratio
3 / 36
4 / 48
6 / 72
8 / 96

What was Mr. Foley’s likely error? Explain in your own words

Target 2: I can recognize a proportional relationship from a graph

4)Which of the following graphs shows a proportional relationship? Circle the correct graph below

a)b)c)

5)Ms. Hutton likes to make cookies. The graph shows a proportional relationship between cups of flour used and number. What does the point (0, 0) represent? What does the point (1,20) represent?

a)What does the point (0, 0) represent?

b)What does the point (1, 21) represent?

6)Does the graph show a proportional relationship between x and y? Choose the correct answer below.

a)Yes, because the graph passes through the origin.

b)No, because the graph is not a straight line.

c)No, because the graph does not pass through the origin.

d)Yes, because the graph is a straight line.

Target 3: I can find the constant of proportionality from tables, diagrams and graphs.

7)The weight of 4 eggs is shown. Identify the constant of proportionality total weight to total eggs.

The constant of proportionality is ______grams per egg

8)What is the constant of proportionality of y to x?

x / 5 / 7 / 8 / 10
y / 55 / 77 / 88 / 110

9)A friend of Mr. Foley’s incorrectly says the constant of proportionality of y to x is . Find the correct constant of proportionality. What is Mr. Foley’s likely error? Explain in your own words. (2 point question)

Target 4: I can find the constant of proportionality from an equation.

10)The equation y =5x describes a proportional relationship between x and y. What is the constant of proportionality?

11)The equation y =x describes a proportional relationship between x and y. What is the constant of proportionality?

12)Wal-Mart sells a T-shirt for $5 per shirt. Write an equation that uses the constant of proportionality used.

13) You bike 11.2 miles in 1.4 hours at a steady rate. Write the equation that represents the proportional relationship between x hours you bike and the distance y in miles that you travel.