During the swimming of a 50-yard sprint in a 25-yard pool, the racers swim away from the starting line and then return to it. Suppose that Alex, who always swims at a steady rate, takes 24 seconds to complete the
race. Let y stand for the distance from Alex to the starting line when the race is t seconds old.
a. Make a table that displays Alex’s distance from the starting line after t seconds.
b. Make a graph of y versus t , and write an equation for this graph.