algebra question

[lovehopefaith98]

I need an answer to the following question:

At 6:00 A.M., there were 800,000 gallons of water remaining in a reservoir. After 8 hours of irrigation, there were 100,000 gallons of water remaining. Write a linear equation that describes the number of gallons of water remaining as a function of the time the field had been irrigated.

Thanks so much!

 

[Deleted member 4993]

I need an answer to the following question:

At 6:00 A.M., there were 800,000 gallons of water remaining in a reservoir. After 8 hours of irrigation, there were 100,000 gallons of water remaining. Write a linear equation that describes the number of gallons of water remaining as a function of the time the field had been irrigated.

Thanks so much!

Water used = time * rate of water used

rate of water used = (800,000 - 100,000)/8

water remaining = water started with - water used

Please share your work with us, indicating exactly where you are stuck - so that we may know where to begin to help you.

 

[lovehopefaith98]

Well, I wasn't exactly sure where to begin. Would it be:

100,000= 800,000 - 700,000?

I am confused exactly what to do. Thanks for your help!

 

[lovehopefaith98]

Thanks guys, for your help.

Is this correct answer?

y=87500x + 800,000