Interpreting Linear Relationships

The slope of the line was 2.

What does the 2 mean?

• Every 2 days, Natalie adds $1 to her piggy bank.

• Every 1 day, Natalie adds $2 to her piggy bank.

• Natalie started with $2 in her piggy bank.

Elena borrowed some money from her brother. She pays him back by giving him the same amount every week. The graph shows how much she owes after each week.

How much money did she borrow from her brother?

• $18

• $6

• $3

• $54

Elena borrowed some money from her brother. She pays him back by giving him the same amount every week. The graph shows how much she owes after each week.

What key features tells you how much money she borrowed from her brother?

• y-intercept

• x-intercept

• slope

Elena borrowed some money from her brother. She pays him back by giving him the same amount every week. The graph shows how much she owes after each week.

What is the slope of the line?

• -3

• 3

• 1/3

• -1/3

• 12

• 13

• 14

• 18

• 4

• 10.75

• 11.75

• 12.75

The graph represents the linear relationship between the number of books Layla has read and the number of months she has been a member of a book club. (7.4A)

• Layla has read 2 books in the first 3 months she was a member of the book club.

• Layla has read 3 books in the first 2 months she was a member of the book club.

• Layla has read 3 books in the first 4 months she was a member of the book club.

• Layla has read 4 books in the first 3 months she was a member of the book club.

Malachi recorded the height of his bicycle ramp and the distance of his jumps in the graph. He plans to raise the ramp to 5.5 feet, and the rate of change stays the same. How far is Malachi able to jump?

• 11 feet

• 3 feet

• 2.25 feet

• 9.5 feet

Sam recorded the height of her skateboard ramp and the distance of her jumps in the graph. She raises her ramp to 2.5 feet, and the rate of change stays the same. How far is Sam able to jump?

• 5 feet

• 1.5 feet

• 2 feet

• 4.5 feet

This graph shows the change in speed of a train over the course of several hours. Based on the graph determine whether each statement is true. Select true or false for each statement.

The speed of the train is decreasing from 2:00 to 3:00 pm. ​ (a)  

The train is stopped between 1:00 and 1:30 pm. ​ (b)  

The speed of the train is increasing from 3:00 to 4:00 pm. ​ (c)  

• false

• true