1.5 represent quantitative relationships graphically and interpret the meaning of a specific part of a graph in terms of the situation represented by the graph 4. Students solve simple linear equations and inequalities over the rational numbers. Students collect, organize and represent data sets that have one or more variables and identify relationships among variables within a data set both manually and by using an electronic spreadsheet program. Students use strategies, skills and concepts in finding solutions. Students verify that a point lies on a line given an equation of the line.
Students are able to derive linear equations using the point-slope formula.
Students solve a system of two linear equations in two variables algebraically, and are able to interpret the answer graphically. Students are able to use this to solve a system of two linear inequalities in two variables, and to sketch the solution sets. Students add, subtract, multiply and divide monomials and polynomials. Students solve multistep problems, including word problems, using these techniques. Students add, subtract, multiply, and divide rational expressions and functions.