Place your graphing calculator in parametric and degree modes. Set the window for $T \min = 0$, Tmax=360, Tstep=1, Xmin= -1.8, $\mathrm { Xmax } = 1.8 , \mathrm { Xscl } = 1 , \mathrm { Ymin } = - 1.2 , \mathrm { Ymax } = 1.2 , \mathrm { Yscl } = 1$. Set the functions to $\mathrm { X } _ { 1 \mathrm {~T} } = \cos \mathrm { T } ^ { \mathrm { m } } , \mathrm { Y } _ { 1 \mathrm {~T} } = \sin \mathrm { T }$. Graph the circle of radius 1 on the screen. Use the trace feature to move a short distance around the circle.
-A wheel is rotating 240 times per minute. Through how many degrees does a point on the edge of the wheel move in $\frac { 1 } { 2 }$ seconds?
A) $180 ^ { \circ }$
B) $720 ^ { \circ }$
C) $24 ^ { \circ }$
D) $540 ^ { \circ }$

Question

Quizplus · Accepted Answer

A wheel rotating 240 times per minute moves through $240 \times 360^\circ$ in one minute. In $\frac{1}{2}$ second, it moves through $\frac{240 \times 360^\circ}{2 \times 60} = 720^\circ$.

Place Your Graphing Calculator in Parametric and Degree Modes Tmin⁡=0T \min = 0Tmin=0

Place Your Graphing Calculator in Parametric and Degree Modes $T \min = 0$