Saturday

January 31, 2015

January 31, 2015

Posted by **Azal** on Saturday, July 20, 2013 at 3:13pm.

a)Find the equation of the graph

b)predict how the graph and the equation will change if the Ferris wheel turns more slowly

c) test your predictions from part b by drawing a graph for three revolutions and finding a equation if the wheel completes one revolution every 20 s.

- trig -
**Steve**, Saturday, July 20, 2013 at 3:24pmsince sin(kt) has period 2pi/k, we have

y = 7sin(pi/8 t) + 8.5

with appropriate shift depending on where the wheel is at time 0.

slower turning means longer period, so the coefficient of t will decrease.

- trig -
**Azal - pleaseee helpp**, Saturday, July 20, 2013 at 3:30pmwhy pi?

- trig -
**Steve**, Sunday, July 21, 2013 at 4:57amset 2pi/k = 16 and solve for k.

Because the period is 16. Normally, sin(x) has period 2pi. Review your text and reread my first line.

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