I've printed out copies of the game's official graph paper, I've got the pointiest ... the digital re-release as a convenient PDF, isn't blank, but comes with a few notes and a small segment ...

This type of curve is called a parabola and it is symmetrical. To draw the graph we need coordinates. We generate these coordinates by substituting values into the quadratic equation. A quadratic ...

Using a two-sided graph solves this dilemma by displaying the two series in relation to two different vertical scales, one on each side of the graph. Two-sided graphs require three sets of data ...