In order to play at the mt. guinea town miniature golf club, a player has to pay the membership fee and pay for each round played. the total cost is represented by the function t = 38.79r + 17.18, where t = the total cost (in dollars) and r = the number of rounds played. which of the following statements must be true? a the slope is the cost per round $38.79, and the y-intercept is the membership fee of $17.18. b the total cost is $55.97. c the slope is the cost per round $17.18, and the y-intercept is the membership fee of $38.79. d the slope is the membership fee of $17.18, and the y-intercept is the number of rounds played. e i don't know