1. A

2. B

3. C

4. D

0% 0%0%0%

A. 3,969 mm2

B. 252 mm2

C. 819 mm2

D. 1,984.5 mm2

Find the area of the square.

(over Lesson 3-6)

1. A

2. B

3. C

4. D0% 0%0%0%

The rectangle has width 3.6 feet and area A feet. Which of the following could be used to find the length of the rectangle?

A.

B.

C.

D.

(over Lesson 3-6)

Main Idea and Vocabulary

Example 3:Real-World Example

Concept Summary: Representing Functions

• linear equation – An equation with a graph of a straight line.

• Graph data to demonstrate relationships (2.8.8H) (M7.D.1.1).

ANIMALS Blue whales can reach a top speed of 30 miles per hour. The equation d = 30t describes the distance d that a whale swimming at that speed can travel in time t. Assuming that a whale can maintain the speed, represent the function with a graph.

Step 1 Select any four values for t. Select only positive numbers because t represents time. Make a function table.

Step 2 Graph the ordered pairs and draw a line through the points.

Answer:

1. A

2. B

3. C

4. D0% 0%0%0%

TRAVEL Susie takes a car trip traveling at an average speed of 55 miles per hour. The equation d = 55t describes the distance d that Susie travels in time t. Represent this function with a graph.

A. B.

C. D.

End of the Lesson

Five-Minute Check (over Lesson 3–6)

Image Bank

Math Tools

Solving Equations Using Models

Perimeter

Solving Equations Two-Step Equations