Question

A watering can dispenses water at the rate of 0.25 gallon per minute. The original volume of water in the can was 6 gallons. Which set of ordered pairs shows the volume of water in the can in gallons (y), as a function of time in minutes (x), from the first minute after the can starts dispensing water?

Answer 1

A {(1, 6.0), (2, 5.75), (3, 5.50)}

B {(6.0, 1), (5.75, 2), (5.50, 3)}

C {(1, 5.75), (2, 5.50), (3, 5.25)}

D {(5.75, 1), (5.50, 2), (5.25, 3)}


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Answer 2

the 1st value is the time, and the 2nd value is the volume remaining in the can.

the can is full at time x = 0 so y = 6.0

1 minute later x = 1 so y = 6.0 - 0.25

and for every 1 unit increase in x, y decreases by 0.25

Answer 3

that's correct