An illustration shows two graphs depicting cost of gasoline per gallon in dollars in store A and B. The first graph shows cost of gasoline per gallon in dollars in store A. The horizontal axis shows gallons ranging from 0 to 20 in increments of 5. The vertical axis shows the cost in dollars ranging from 0 to 70 in increments of 10. Four data points are plotted on the graph at left parenthesis 0 comma 0 right parenthesis, left parenthesis 5 comma 20 right parenthesis, left parenthesis 10 comma 40 right parenthesis, and left parenthesis 15 comma 60 right parenthesis. A line connects all the data points. The second graph shows cost of gasoline per gallon in dollars in store B. The horizontal axis shows gallons ranging from 0 to 10 in increments of 2. The vertical axis shows the cost in dollars ranging from 0 to 30 in increments of 2. Three data points are plotted on the graph at left parenthesis 0 comma 0 right parenthesis, left parenthesis 4 comma 14 right parenthesis, and left parenthesis 8 comma 28 right parenthesis. A line connects all the data points.

Question

The proportional relationship between 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.

(1 point)
Responses

Store B has the cheaper gasoline. The cost of gasoline is $3.50 per gallon.
Store B has the cheaper gasoline. The cost of gasoline is $3.50 per gallon.

Store B has the cheaper gasoline. The cost of gasoline at Store A is $5 per gallon.
Store B has the cheaper gasoline. The cost of gasoline at Store A is $5 per gallon.

Store B has the cheaper gasoline. The cost of gasoline at Store A is $100 per gallon.
Store B has the cheaper gasoline. The cost of gasoline at Store A is $100 per gallon.

Store A has the cheaper gasoline. The cost of gasoline is $0.25 per gallon.

Answer 1

To determine which store has the cheaper cost of gasoline per gallon, we need to analyze the plotted data points from both graphs:

For Store A:

• Data points:
  • (0, 0)
  • (5, 20) → $20 for 5 gallons → $4 per gallon
  • (10, 40) → $40 for 10 gallons → $4 per gallon
  • (15, 60) → $60 for 15 gallons → $4 per gallon

The cost of gasoline at Store A is consistently $4 per gallon across all data points.

For Store B:

• Data points:
  • (0, 0)
  • (4, 14) → $14 for 4 gallons → $3.50 per gallon
  • (8, 28) → $28 for 8 gallons → $3.50 per gallon

The cost of gasoline at Store B is consistently $3.50 per gallon across all data points.

Based on this analysis:

• Store A has a cost of $4 per gallon.
• Store B has a cost of $3.50 per gallon.

Thus, Store B has the cheaper gasoline. The correct response is:

Store B has the cheaper gasoline. The cost of gasoline is $3.50 per gallon.