A baseball diamond is a square with sides of 90 feet. A player, after hitting a home

Question:

A baseball diamond is a square with sides of 90 feet. A player, after hitting a home run, loped around the diamond at 10 feet per second. Let s represent the player's distance from home plate after t seconds.
(a) Express s as a function of t by means of a four-part formula.
(b) Express s as a function of t by means of a three-part formula.