Gasoline Usage The graph shows the gallons of gasoline y in the gas tank o...

Gasoline Usage The graph shows the gallons of gasoline y in the gas tank of a car after x hours.

(a) Estimate how much gasoline was in the gas tank at x = 1.

(b) If x = 0 represents 3:15 p.m., at about what time was the gas tank filled?

(c) Interpret the graph.

(d) When did the car burn gasoline at the fastest rate?