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Chapter 5: Writing Linear Equations; Lesson 1: Writing Linear Equations from Situations and Graphs

Guided Practice

• Question 1

Li is making beaded necklaces. For each necklace, she uses 27 spacers, plus 5 beads per inch of necklace length. Write an equation to find how many beads Li needs for each necklace.

a. input variable:

• Question 1

b. output variable:

• Question 1

c. equation:

• Type below:
• Question 2

Kate is planning a trip to the beach. She estimates her average speed to graph her expected progress on the trip. Write an equation in slope-intercept form that represents the situation. • Type below:
• Question 3

At 59 °F, crickets chirp at a rate of 76 times per minute, and at 65 °F, they chirp 100 times per minute. Write an equation in slope-intercept form that represents the situation.

• Type below:

Essential Question Check-In

• Question 4

Explain what m and b in the equation $$\text{y} = \text{mx + b}$$ tell you about the graph of the line with that equation.

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