Question

The graph and table show the amount of gasoline in gallons, x, and total cost in dollars, y, of gasoline at two gas stations Gas Station P Gas Station M X у 50 5 19.00 45 10 38.00 10 15 57.00 Total Cost (dollars) 320 10 0 4 5 6 7 8 9 10 Amount of Gasoline (gallons) Use the unit price of gasoline at both gas stations to determine which gas station charges more for gasoline (gallons). Be sure to include the unit prices in your answer. Show or explain your work.

Answer 1

The unit price for the gas station M can be computed below

$\text{unit price = }\frac{y}{x}=\text{ \ 3.8 per gallon}$

The unit price for gas station P is

$\text{unit price = }\frac{y}{x}=\frac{40}{10}=\text{ \ 4 per gallon}$

Therefore gas station P charges more for gasoline.