A cubic graph is produced when you have an equation of the form \(y = ax^3 + bx^2 + cx + d\), where \(b\), \(c\) and \(d\) can be zero but \(a\) cannot be zero. Cubic graphs are curved but can have ...

Plotting a graph takes time. Often mathematicians just want to know the key features. These are: shape, location and some key points (such as where the graph crosses the axes or turning points). So ...

Saving equations in a calculator can be useful for many reasons. You may want to store equations in a calculator so they can be graphed. You may also want to save an equation so you can see what you ...