# Graphs of Equations

Videos and lessons to help High School students understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line).

### Suggested Learning Targets

• Understand that all solutions to an equation in two variables are contained on the graph of that equation.

Common Core: HSA-REI.D.10
The graph of an equation in two variables is the set of solutions plotted on a plane (A-REI.10)
In this lesson you will learn how to graph an equation by using a table of values.

In this lesson you will learn how to determine if a coordinate pair is a solution to an equation by using its graph.

A.REI.10 - Understand the graph of an Equation.

In this lesson you will learn how to make a table of values that satisfy an equation in two variables by using substitution.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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