# data[].attributes.body
1) Click on Link

2)  Save as PNG.
3) Post the PNG file to this thread.

# data[].attributes.body
The diameter is 24, highest point is 20. The graph is a sin graph and when its at 20ft, the stopwatch reads 7 seconds.

# data[].attributes.body
We will find that the lowest point is -4 (below the surface). Half of that would be 8, so the amplitude would be 12. We also know that it completes a revoultion every 16 seconds.

# data[].attributes.body
Need to find : VS,HS,Trig,AMP, Period,B, and CP.

# data[].attributes.body
Draw the graph.
find the equation.
Highest point: 20 feet when its at 7 seconds.
Wheels diameter: 24 feet.

# data[].attributes.body
Using the measurements of the wheel and what information we have about the HS and Period, we will need to find the values of the VS, Amp, Period, B, and the CP.

# data[].attributes.headline
It takes 7 seconds to get to the highest point which is 20 ft.The wheels diameter is also 24 ft and it completes a revolution every 16 sec.

# data[].attributes.subject
It takes 7 seconds to get to the highest point which is 20 ft.The wheels diameter is also 24 ft and it completes a revolution every 16 sec.

# data[].attributes.body
Wheel's diameter = 24 feet
Highest point = 20 feet above water
Period/Full rotation = 16
7 seconds = Horizontal stretch (as well as its highest point, being 20

# data[].attributes.body
the diameter of the wheel is 24 feet
the highest point is 20
the period is 16
it was seven seconds at the top

# data[].attributes.headline
It takes 7 sec. to get to the highest point and the wheel has a diameter of 24ft. We have to find the vs, amp, period, and the CP 

# data[].attributes.subject
It takes 7 sec. to get to the highest point and the wheel has a diameter of 24ft. We have to find the vs, amp, period, and the CP 

# data[].attributes.body
you can find the amplitude by dividing the diameter by 2.. youll get 12
the vs is found by taking 12 away from 20... you'll get 8
then youll fint the min by taking 12 away from 8.. you'll get negative 4

the period is 2 pi divided by 16
it simplifies to 1/8
the cp is found by 8 divided by 4
cp goes by 2 pi

the graph is sin bc you started at the deck

# data[].attributes.body
7sec= horizontal shift
24/2=12 your amp
period=16 how long it takes to make a full rotation

# data[].attributes.body
Highest point would be 20 and the lowest would -4 making the middle 8 because to equal the same you have to add 12 to each side for a half way point.the period would be 16 and the horizontal shift would be 7 seconds because thats what the stop watch reads.

# data[].attributes.body
1st wants us to graph sinusoid
2nd wants equation of sinusoid
3rd first positve value above water
4th Wants the y value when x is 2

# data[].attributes.body
Find all the parts in the box and make the equation

# data[].attributes.body
_graph sinusoid
-find equation for sinusoid
-find positive value above water
-Whats the height at 28 sec.

# data[].attributes.body
Find lowest point HS VS and amp put it in a calculator

# data[].attributes.body
Trig: Cos  VS: 8  HS: -7
Amp: 12  P: 16 B pi/8  CP:4
y= 8-12cos(pi/8(x-7))

# data[].attributes.body
distance is a sinusoidal function of time.
after 7 seconds, the point is at it's highest surface which is 20ft.
The wheels diameter is 24ft and completes revolution evry 16 seconds.

# data[].attributes.body
Trig: Cos   Vs: 8     Hs: -7
Amp:12
P:16 B:pi/4 Cp:4

# data[].attributes.body
put equation into calculator to st window range

2nd + trace, calc. fpr 1st questionY2=0

# data[].attributes.body
8) 4.85
9)out of water
10)12.59

# data[].attributes.body
-Draw the graph based on the information needed to make the graph (Equation, V.S., H.S., Amplitude, etc.)
-Find 1st positive value of time where the point is at the water's surface and determine whether the point is coming out of the water or in.
-Find how far above the water the point is at t=2 sec.

# data[].attributes.body
-Highest point given= 20ft
-Period (Revolution)= 16 sec.
-The timer starts on 7 sec., so that will be our H.S.
-Wheel diameter= 24ft. Divide this by 2 to find the amplitude; the answer would be 12.
-20-12=8 This would be the start point.
8-12=-4 This would be the lowest point.
-B value= 2pi/16= pi/8
-CPs= 16/4= 4