Points in Space

points in space:

• Origin of a graph
• freckle
• point/tip of a nail

drawing attention to the origin of a graph:

1. circle it
2. give its coordinates to someone (0,0)
3. make it red/colored
4. draw an arrow to it
5. give the equation for the point
6. label it
7. make it solid and the lines around it not continuous (dashed)
8. separate it from a solid plane/background
9. make it larger/heavier than the line of the axes
10. put something through it, like a tack