# data[].attributes.body
x=1.934
x=7.066
https://drive.google.com/a/naperville203.org/file/d/0B9_7mdoHJhZ7dmszU05RVUNIalU/view?usp=sharing (diagram)
https://drive.google.com/open?id=0BwYc2ghtPaDPUEdBbi1hOWdzOEk (work)

# data[].attributes.attachment_link.description
A beautiful, free online graphing calculator from desmos.com

# data[].attributes.body
y=6sin(2pi/15)x-2

# data[].attributes.attachment_link.description
A beautiful, free online graphing calculator from desmos.com

# data[].attributes.body
y=7sin(pi/15x+14
x=12.885+17k

# data[].attributes.attachment_link.description
A beautiful, free online graphing calculator from desmos.com

# data[].attributes.body
y=7sin(pi/6)(x)-4 or y=7sin(30x)-4
1.52+12K
4.48+12K

# data[].attributes.body
y=4sin(20x)+6.5
110.816+360k
404.846+360k
https://drive.google.com/a/naperville203.org/file/d/0B9_7mdoHJhZ7dmszU05RVUNIalU/view?usp=sharing

# data[].attributes.attachment_link.description
A beautiful, free online graphing calculator from desmos.com

# data[].attributes.body
y= 7sin.25(x)+10
X-ints: (-.573,9), (13.14,9), (24.559, 9)

# data[].attributes.body
y=7.5sin(2pi/13.5x)+12
The line intercects at 148.168 and 238.578
2 equations are 148.168+360K and 238.578+360K
Photo of initial Graph:
https://www.desmos.com/calculator/7la0u03iha