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Quiz 1
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A lake near the Arctic Circle is covered by sheet of ice during the cold winter months. When spring arrives, the ice starts to melt.
\( S \) models the ice sheet's thickness (in meters) after \( t \) weeks.
\[
S=-0.25 t+4
\]
What is the ice sheet's thickness at the beginning of spring? meters

Answer

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Answer

\(S = 4 \) meters

Steps

Step 1 ：Substitute \(t = 0\) into the equation \(S=-0.25 t+4 \)

Step 2 ：Calculate \(S = -0.25(0) +4 \)

Step 3 ：\(S = 4 \) meters