Five-Minute Check (over Lesson 4–8)

Main Idea and Vocabulary

Example 1:Naming Points Using Ordered Pairs

Example 2:Graphing Ordered Pairs

Example 3:Graphing Ordered Pairs

Example 4:Graphing Ordered Pairs

Example 5:List Data as Ordered Pairs

Example 6:Graph Data Using Ordered Pairs

• coordinate plane

• origin

• x-axis

• y-axis

• Use ordered pairs to locate points and organize data.

• ordered pair

• x-coordinate

• y-coordinate

• graph

Naming Points Using Ordered Pairs

Write the ordered pair that names point S.

Step 1 Start at the origin. Move right along the x-axis

until you are under point S. The x-coordinate

of the ordered pair is 1.

Answer: Point S is named by the ordered pair (1, 2).

Step 2 Now move up until you

reach point S. The y-coordinate is 2.

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

A. (2, 3)

B. (3, 2)

C. (2, 2)

D. (3, 3)

Write the ordered pair that names point E.

Graphing Ordered Pairs

Graph the point T(2, 2).

• Start at the origin.

• Move 2 units to the right on the x-axis.

Answer:

• Then move 2 units up to locate the point.

• Draw a dot and label the dot T.

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

Graph the point F(0, 1).

A. B.

C. D.

• The value is halfway between 1 and 2. So, on the

x-axis, move to the right halfway between 1 and 2.

Graphing Ordered Pairs

• Start at the origin.

Answer:

• Move 0 units up on the y-axis.

• Draw a dot and label the dot U.

Graph the point

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

A. B.

C. D.

Graph the point

Graphing Ordered Pairs

Graph the point V(0.5, 1).

• Start at the origin.

• The value 0.5 is halfway between 0 and 1. So, on the x-axis, move halfway between 0 and 1.

Answer:

• Then move 1 unit up to locate the point.

• Draw a dot and label the dot V.

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

Graph the point H(3, 1.5).

A. B.

C. D.

List Data as Ordered Pairs

PETS Amelia feeds her dog, Buster, 2 cups of food each day. Amelia made this table to show how much food Buster eats for 1, 2, 3, and 4 days. List this information as ordered pairs (days, food).

Answer: The ordered pairs are (1, 2), (2, 4), (3, 6), and (4, 8).

Animation: Ordered Pairs and Functions

1. A

2. B

3. C

4. D0% 0%0%0%

A. (1, 3), (2, 6), (3, 9), (4, 12)

B. (3, 1), (6, 2), (9, 3), (12, 4)

C. (1, 4), (2, 8), (3, 12), (4, 16)

D. (4, 1), (8, 2), (12, 3), (16, 4)

TABLES Jordan is planning to have a party. The table shows the number of guests he can invite if he sets up 1, 2, 3, and 4 tables. List this information as ordered pairs (tables, guests).

Graph Data Using Ordered Pairs

PETS Amelia feeds her dog, Buster, 2 cups of food each day. Amelia made this table to show how much food Buster eats for 1, 2, 3, and 4 days. Graph the ordered pairs (days, food). Then describe the graph.

Answer: The points appear to fall on a line.

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

TABLES Jordan is planning to have a party. The table shows the number of guests he can invite if he sets up 1, 2, 3, and 4 tables. Graph the ordered pairs (tables, guests). Then describe the graph.

A. B.

C. D.

The points do not appear to fall on a line.

The points appear to fall on a line.

The points appear to fall on a line.

The points do not appear to fall on a line.

End of the Lesson

Five-Minute Check (over Lesson 4–8)

Image Bank

Math Tools

Animation Menu

Greatest Common Factor

4-2 Equivalent Fractions

4-9 Ordered Pairs and Functions

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

(over Lesson 4-8)

A. 4.10

B. 4.0

C. 0.4

D. 0.04

Write as a decimal.

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

(over Lesson 4-8)

A. 0.4

B. 0.6

C. 0.8

D. 0.9

Write as a decimal.

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

(over Lesson 4-8)

A. 0.2475

B. 0.3625

C. 0.4125

D. 0.4375

Write as a decimal.

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

(over Lesson 4-8)

A. 3.14

B. 3.25

C. 3.50

D. 3.75

Write as a decimal.

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

(over Lesson 4-8)

A. 8.425

B. 8.25

C. 8.22

D. 8.16

Write as a decimal.

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

(over Lesson 4-8)

A. 2.625 mi

B. 2.575 mi

C. 2.375 mi

D. 2.15 mi

The distance 13,860 feet is equal to miles. Write this mileage as a decimal.