SOLUTION: A lake near the Arctic Circle is covered by a 2-meter-thick sheet of ice during the cold winter months. When spring arrives, the warm air gradually melts the ice, causing its thick

Algebra ->  Functions -> SOLUTION: A lake near the Arctic Circle is covered by a 2-meter-thick sheet of ice during the cold winter months. When spring arrives, the warm air gradually melts the ice, causing its thick      Log On


   

Question 1187248: A lake near the Arctic Circle is covered by a 2-meter-thick sheet of ice during the cold winter months. When spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. After 3 weeks, the sheet is only 1.25 meters thick.
Let y represent the ice sheet's thickness (in meters) after xxx weeks.
Found 3 solutions by Alan3354, ikleyn, josgarithmetic:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Do you have a question?

Answer by ikleyn(52810) About Me  (Show Source):
You can put this solution on YOUR website!
.

        When the post comes with no question,  it makes  VERY  UNPLEASANT  impression

                            about the person who posted it.



        It is not accepted between civilized people,  calling themselves   " homo sapience ".



Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
This is linear. "decrease at a constant rate."
According to the description, this constant rate is %282-1.25%29%2F%283-0%29=0.25 meters per week but as NEGATIVE. Slope is -0.25.

y=-0.25x%2B2, simply plugging into slope-intercept form.