Suppose that you want to model the height of a rider on a Ferris wheel has a function of time, t, in minutes. If the rider is at the bottom of the Ferris wheel at T= 0 minutes, which of the following would be easiest to use? A. the cosine function unreflected
B. the sine function unreflected.
C. the cosine function reflected about its midline. D. the sine function reflected about its midline

I know it's a bit late, but the answer is C

Step-by-step explanation:

Got it right on edge

$12. that is my answer.

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."