(y-b)=m(x-a)
Solve general word problems about real-world relationships that can be modeled by linear equations or functions.
Constructing_linear_models_for_real_world_relationships
Learn how to represent real-world relationships (that are described verbally) with linear graphs, equations, or functions.
Interpreting_linear_functions_and_equations
Solve word problems where you need to answer a question about a real-world relationship based on its mathematical model.
Learn about intercepts and practice finding them from graphs, tables, and equations.
Compare features of linear functions, such as slope and intercepts, where the functions are given in different forms—tables, graphs, or formulas.
ax+by=c
Summary_Forms_of_two_variable_linear_equations
Take an overview of the three main forms of linear equations: slope-intercept, point-slope, and standard. Learn which form is most appropriate for different uses.
Graphing_slope_intercept_equations
Learn how to graph linear equations that are given in slope-intercept form. For example, graph y=2x+3.
Writing_slope_intercept_equations
Learn how to write the equation of a line (in slope-intercept form) when given the graph of the equation or two points on the line. For example, write the equation of the line that passes through the points (0,1) and (5,4).
Learn about slope (the steepness of a line) and how to find it.
Two_variable_linear_equations_intro
Understand what a solution to an equation really means. Practice plugging in values for variables to see whether or not an equation is true.
Make an introduction with the most common form of linear equations, slope-intercept form! For example, y=3x+5 is a linear equation in slope-intercept form.
You know what horizontal and vertical lines are, but how do their equations look? And what is their slope? Learn all about it in this tutorial.
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