In order to make the playoff a soccer team must get 20 points during the regular season. The team gets 2 points for a win and 1 point for a tie. A team eams just enough points to make the playoffs. Let x represent the number of wins and y represent the number of ties. a. Write an equation to relating the all the possible values of x and y that will let the team make the playoffs. b. Write the equation in Slope-Intercept Form. c. If the team wins 8 games, how many tie games will need to occur?