Answer:
A portion of the path of a certain roller coaster can be modelled by fox x
6x +11x-6, where x represents the time in seconds and fix) represents the height
of the roller coaster. Determine the three times at which the roller coaster is at
ground level
A 1.2 and 3 seconds
C.2.3 and 4 seconds
B 1.3 and 4 seconds
D. 2, 3 and 5 seconds