xavier, mary , joann and tiffany , ate having a swimming race at the local pool. xavier starts at the edge of the pool and swims 2 meters evey second .mary gets a 4-meter head start and swims 0.5 meters every second . joann starts at the edge of the pool and swims as fast as mary . tiffany can swim at 3 meters per second , but does not start untill 1 second after the race begins .
A. Write an equation for each of the swimmers
B. Graph the equation showing all the swimmers progress