Question

The graph shows how many centimeters above a table top, y, a painted spot on an automated hamster wheel is for a given number of seconds x.

How many degrees is the painted spot turning in 0.75 s?

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Answer 1

From the graph we can see that from 0 to 0.75 seconds the graph makes half a wave (i.e. it span from a minimum to a maximum).

This means that the wheel turned half a circle, and thus the angle is 180°