Graphing Proportional Relationships from Word Problems

What is a key characteristic of all proportional relationships?

• They form a curved line.

• They start at the origin (0,0).

• They never intersect the y-axis.

• They have a slope of zero.

In Leah's fishing trip example, what is the speed at which they sail away from the shore?

• 7 miles per hour

• 6 miles per hour

• 8 miles per hour

• 5 miles per hour

What is the second coordinate point used to graph Leah's fishing trip?

• (1, 7)

• (1, 6)

• (1, 5)

• (1, 8)

How do you calculate the slope of a line?

• Sum of x and y

• Change in y over change in x

• Difference between x and y

• Change in x over change in y

What is the slope of the line in Leah's fishing trip example?

• 5

• 6

• 7

• 8

How many lines does Carrie need to memorize each day?

• 3 lines

• 2 lines

• 5 lines

• 4 lines

What is the second coordinate point used to graph Carrie's line memorization?

• (1, 4)

• (1, 5)

• (1, 3)

• (1, 2)

What is the slope of the line in Carrie's line memorization example?

• 2

• 3

• 4

• 5

What is the perimeter of an equilateral triangle with 2-foot side lengths?

• 5 feet

• 4 feet

• 7 feet

• 6 feet

What is the slope of the line in Max's equilateral triangle example?

• 2

• 5

• 3

• 4