SOL 
A.6  The student will graph linear equations and linear inequalities in two variables, including
a) determining the slope of a line when given an equation of the line, the graph of the line, or two points on the line. Slope will be described as rate of change and will be positive, negative, zero, or undefined; and
b) writing the equation of a line when given the graph of the line, two points on the line, or the slope and a point on the line.
A.7d  The student will investigate and analyze function (linear and quadratic) families and their characteristics both algebraically and graphically, including x and yintercepts.

