SOLUTION: The water level of a river is 34 feet and it is receding at a rate of 0.5 foot per day. Write an equation that represents the water level, w, after d days. Identify the slope and y

Question 550994: The water level of a river is 34 feet and it is receding at a rate of 0.5 foot per day. Write an equation that represents the water level, w, after d days. Identify the slope and y-intercept and describe their meanings. In how many days will the water level be 26 feet?
Answer by TutorDelphia(193) (Show Source): You can put this solution on YOUR website!
Our equation is w=34-.5*d which I can write in slope intercept form as:
w=-.5d+34

The slope is -.5 which is our rate of change for the water level
The y intercept is 34 which is our water level after 0 days.
26=-.5d+34
-8=-.5d
16=d
It'll be at 26 in 16 days.
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