# data[].attributes.body
it has no point so its zero

# data[].attributes.body
the point touches the x axis 2 times

# data[].attributes.body
1 point that touches the x axis

# data[].attributes.body
Minimum and max of the point

# data[].attributes.body
cut the parabola in half

# data[].attributes.body
Concave up, Concave down