Slope of Proportional Relationships

Find the slope 

• m = 3/2

• m = 2/3

• m = -3/2

• m = -2/3

Find the slope 

• m = -1

• m = -4/4

• m = 4/4

• m = 1

The graph shows how the number of feet of water in a small pond changes as the pond is being filled. How do you know that the line shows a constant relationship (choose all that are true)

• It's greater than 0

• It passes through the origin

• It's a straight line

• It's negative

Rhoda pays for Internet access each month. The graph shows the relationship between the total amount she has paid and the amount of time, in months.

What is the slope?

• m = 75

• m = 2

• m= 150

• m=1

The graph shows the costs of lotion C, represented by line C, and lotion D, represented by line D.

True or False?

Lotion D costs more than lotion C because for any amount on the x-axis, lotion D has a greater cost than lotion C.

• True

• False

What is the slope of this line?

• unknown

The graph shows how the number of feet of water in a small pond changes as the pond is being filled. What is the slope of the line?

• -2

• 2

Rhoda pays for Internet access each month. The graph shows the relationship between the total amount she has paid and the amount of time, in months. How much does she pay per month?

• $375

• $75

• $150

• $225

The graph shows the costs of lotion C, represented by line C, and lotion D, represented by line D.

True or False?

The cost of lotion C is $0.50 per ounce.

• True

• False

The graph shows the costs of lotion C, represented by line C, and lotion D, represented by line D.

True or False?

Lotion C costs more than lotion D because the slope of line C is greater than slope of line D.

• True

• False