9-7x+3y=0
-3y=9-x

solve by graphing

Name the quadrilaterals that have four equal sides.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2