"I can solve problems where I substitute numbers into an equation, but I don't understand when it becomes a graph." "I ...

A function is a rule that is applied to one set of values to give another set of values. A function can be illustrated on a graph – points are plotted as coordinates and joined by either a straight ...

Are your students struggling to connect the algebra of linear functions with their graphs? Take the guesswork out of coordinate graphing and equation-building with this comprehensive, high-utility ...