Practice problem

Piecewise Linear Functions

Piecewise function of the the equations y=3/2x with domain [0,2], y=3 with domain (2,4), y=-3x+15 with domain [4,7], y=2x-20 with domain [7,10], and y=0 with domain [10,12]. — made using Desmos

Joey's favorite thing to do at the pool is jump off of the diving board. The graph above shows his movements at the pool. The $x$ -axis is time in seconds and the $y$ -axis is height in feet. Joey runs up the ladder to the diving board, pauses for dramatic effect, and jumps off the board into the pool. He then touches the bottom of the pool and swims right back up to the ground level. Which of the following statements are true based on this information?