This week in pc we analyzed the quadratic function. In the equation each variable represents something that can change the graph.

positive sign, the graph moves up, negative sign, the graph moves down.

positive sign, the graph moves right, negative sign, the graph moves left.

positive sign, the graph opens up, negative sign, the graph opens down.

greater than 1, the graph is stretched vertically, between 0 and1,

the graph is compressed vertically.