What do you think the graph of \(y = \cos 2x^\circ\) would look ... point when \(y = - 1\) The graph looks like: Now try the example questions below.

A straight line is a linear graph. A quadratic graph has an equation which includes an \(x^{2}\) term. Examples of equations ... typical shape for a quadratic function. Always join points freehand ...

Notice that the graph includes three different curves ... What It Is and How It Works in Investing, With Examples ...