Lin and Claire each threw a rock into a stream. The black graph represents the height of a stone t seconds after it was tossed up by Lin and the purple graph represents the height of a stone t seconds after it was tossed up by Claire. 1) Whose stone hit the water second, and at what time?

2) How long did it take for Claire's rock to reach its maximum? What is the maximum height?

3) Who had the higher initial height? What was it?