Michael goes to a theme park and rides two different roller coasters that both begin on a raised platform. his height while on the first roller coaster, measured in feet from the platform height, can be modeled by the following graph, where t is the number of seconds since the ride began. his height while on the second roller coaster, measured in feet from the platform height, can be modeled by a trigonometric function, shown in the following table, where t is the number of seconds since the ride began. t 0 20 40 60 80 100 120 140 160 g(t) 0 50 100 50 0 -50 -100 -50 0 which of the following best describes michael's height while on the two roller coasters? a. while on the first roller coaster, the function modeling michael's height switches from positive to negative approximately every 40 seconds, meaning he changes from being at a height above the platform to below the platform approximately every 40 seconds. while on the second roller coaster, this change occurs every 80 seconds. b. while on the first roller coaster, the function modeling michael's height switches from positive to negative every 60 seconds, meaning he changes from being at a height above the platform to below the platform every 60 seconds. while on the second roller coaster, this change occurs every 20 seconds. c. while on the first roller coaster, the function modeling michael's height switches from positive to negative every 40 seconds, meaning he changes from being at a height above the platform to below the platform every 40 seconds. while on the second roller coaster, this change occurs every 20 seconds. d. while on the first roller coaster, the function modeling michael's height switches from positive to negative approximately every 80 seconds, meaning he changes from being at a height above the platform to below the platform approximately every 80 seconds. while on the second roller coaster, this change occurs every 40 seconds.