SOLUTION: An automated production line uses distilled water at a rate of 300 gallons every 2 hours to make shampoo. After the line had run for 9 hours, planners noted that 2,100 gallons of d

Question 926388: An automated production line uses distilled water at a rate of 300 gallons every 2 hours to make shampoo. After the line had run for 9 hours, planners noted that 2,100 gallons of distilled water remained in the storage tank. Write a linear equation relating the time t in hours since the production line began and the number of gallons g of distilled water in the storage tank. Write the equation in slope-intercept form.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
That is a rate of 150 gallons per hour, so slope .

y, volume of water in tank
x, time in hours
POINT (9,2100).

Point-Slope form equation for a line will be convenient.
for any known slope m and known point (u,v).

I changed the variables in my solution so you would really want the solution and result shown as .
The vertical axis intercept is 3450, meaning so many gallons of water in the storage tank at the beginning, before the operation started.
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