Matthew is doing an experiment for physics class he drops a bouncy ball of a bel matthew is doing an experiment for physics class he drives a bouncy ball of a balcony from a height of 15 m bows next bounce is always 60% of the height of the previous bounce let n=bounce number before the ball is dropped n=0 because the ball has not yet bounced which explicit formula represents the height of the ball after n bounces a. an=9(0.6)^n-1 b. an=15(0.6)^n+1 c. an=9(0.6)^n+1 d. an=15(0.6)^n-1