Texas Instruments TI-84 Plus Manual Book page 93

Try setting the graph styles to ë
Note:
simulates a chair on the ferris wheel and the ball flying through the
air when you press s.
Press s to graph the equations. Watch closely as they are
4.
plotted. Notice that the ball and the ferris wheel passenger appear
to be closest where the paths cross in the top-right quadrant of the
ferris wheel.
Press p. Change the viewing window to concentrate on this
5.
portion of the graph.
Tmin=1
Tmax=3
Tstep=.03
Press r. After the graph is plotted, press ~ to move near the
6.
point on the ferris wheel where the paths cross. Notice the values of
, , and .
X Y T
Press † to move to the path of the ball. Notice the values of
7.
( is unchanged). Notice where the cursor is located. This is the
T
position of the ball when the ferris wheel passenger passes the
intersection. Did the ball or the passenger reach the intersection
first?
Activities
Xmin=0
Xmax=23.5
Xscl=10
and ì
, which
X1T X2T
Ymin=10
Ymax=25.5
Yscl=10
and
X Y
85