the proportional relationship between a the cost of gasoline and the number of gallons of gasoline from store A and store B are displayed in the graphs. Use the graphs to interpret the store that has the cheaper cost of gasoline per gallon.
To determine which store has the cheaper cost of gasoline per gallon, we need to compare the slopes of the lines on the two graphs. The slope of the line represents the cost of gasoline per gallon.
If the slope of the line is steeper, it means that the cost of gasoline per gallon is higher. If the slope of the line is less steep, it means that the cost of gasoline per gallon is lower.
Therefore, the store with the graph that has the less steep slope (less increase in cost for each additional gallon) would have the cheaper cost of gasoline per gallon.