Question

A watering can dispenses water at a rate of 0.15 gallon per minute. The original volume of water in the can was 5 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

The changing rate of the amount of water in the watering can is a constant rate of 0.15 gallon per minute.

The initial volume of water in the can at time = 0 is 5 gallons

The function will be a linear function in the form of where

is the volume of water in the can after minutes

is the changing rate

is the initial volume when time is 0

Substitute all the values into the form we have

Explanation:

y=0.15x +5

Answer 2

The changing rate of the amount of water in the watering can is a constant rate of 0.15 gallon per minute.

The initial volume of water in the can at time = 0 is 5 gallons

The function will be a linear function in the form of
`y=ax+b` where

`y` is the volume of water in the can after
`x` minutes

`a` is the changing rate

`b` is the initial volume when time is 0

Substitute all the values into the form we have


`y=0.15x+5`