Solutions & Graphs

• Every time a line crosses or touches the x–axis, it is a solution

• A graph must cross or touch the x–axis for it to have any solutions (if not, the solutions are imaginary

Degree of Equation & Graphs

• Straight line that crosses the x–axis: linear term

• Bell shaped curve (or curved line) that crosses the x–axis: squared term

• Line up, then curved and then line up again: cubed term