Problem
(1) Khan Academy Get Al Guide Donate [ Quiz 1 Google Classroom 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
Solution
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
