Sven can buy tomatoes for $2.50
a pound at Grandiose Grocers, one block from his house.
He can get tomatoes for $2.00
a pound at EconoFoods, but he has to spend $3
on bus fare to get there and back.

The graph shows the cost of buying tomatoes from each grocery store.

How should the x-axis should be labeled
The x-axis should be labeled . . .
A: Cost of Transportation ($)
B: Total Cost ($)
C: Price of Tomatoes ($lb)
D: Pounds of Tomatoes

The y-axis should be:
The y-axis should be labeled . . .
A: Cost of Transportation ($)
B: Total Cost ($)
C: Price of Tomatoes ($lb)
D: Pounds of Tomatoes

What does the slope of each line represent?
The slope of each line represents the . . .
A: Cost of Transportation ($)
B: Total Cost ($)
C: Price of Tomatoes ($lb)
D: Pounds of Tomatoes

What does the y-intercept of each line represent?
A: Cost of Transportation ($)
B: Total Cost ($)
C: Price of Tomatoes ($lb)
D: Pounds of Tomatoes

The independent variable is independent of other factors. It affects the dependent variable and is plotted along the x-axis. In this case, the independent variable is the number of pounds of tomatoes that Sven buys, as it directly affects the total cost. Therefore, the x-axis should be labelled:

D: Pounds of Tomatoes

The dependent variable is the outcome or result that depends on the independent variable, and is plotted along the y-axis. In this case, the dependent variable is the total cost incurred by Sven, which includes the cost of tomatoes and any additional transportation expenses. Therefore, the y-axis should be labelled:

B: Total Cost ($)

The slope of each line represents the rate of change of the dependent variable (total cost) with respect to the independent variable (number of pounds of tomatoes). In this case, it shows how the total cost changes for each additional pound of tomatoes purchased. Therefore, the slope of each line represents the:

C: Price of Tomatoes ($lb)

The y-intercept is the point where the line intersects the y-axis, indicating the value of y when x is zero. In this case, it represents the initial cost to Sven before he buys any tomatoes, including the cost of transportation (where applicable). Therefore, the y-intercept of each line represents the:

A: Cost of Transportation ($)