Save guides, add subjects and pick up where you left off with your BBC account. An equation of the form \(y = mx + c\) where \(m\) and \(c\) are numbers, gives a straight line when values of \(x ...

Graph of y = ax 2 + bx + c If the graph of the quadratic function \(y = ax^2 + bx + c \) crosses the x-axis, the values of \(x\) at the crossing points are the roots or solutions of the equation ...

In mathematics, a quadratic is a type of problem ... values are also the places at which the graph of the standard form of the equation (y = x² – x – 1) crosses the X axis, which is where ...

In a [previous post](/dotphysics/2008/09/basics-making-graphs-with-kinematics-stuff-part-ii/), I talked about how to plot kinematics data with a spread sheet and how ...