



 
Hi Emoni, The subject line of your email was y = mx + b so I expect you are to find the equation of the line that describes the depth of the water. I would start by drawing a graph with the Yaxis the level of the water in feet and the Xaxis the time in days. There is a break in the Yaxis so I can fit the graph on a page. The water level is 34 feet on day zero and is dropping at 0.5 feet per day so the level on day 1 is 33.5 feet and on day 2 is 33 feet. Can you write an equation for the line passing through these points, the red dots on the graph? Penny  


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