# data[].attributes.body
Have the form of y=mx.

# data[].attributes.body
Have a undefined slope.

# data[].attributes.body
Have a slope of zero.

# data[].attributes.body
It is a negative slope if it goes down from left to right.

# data[].attributes.body
If a slope is positive then it goes up from left to right

# data[].attributes.body
m=y2-y1/x2-x1=rise/run=vertical change/horizontal change

# data[].attributes.body
A line that goes directly horizontal on a graph.