Understanding Linear Equations
A linear equation is an equation between two variables that gives a straight line when plotted on a graph. Let's explore how to graph these fascinating equations.
The Standard Form
Linear equations are often written in the form y = mx + b, where m is the slope and b is the y-intercept.
Graphing Step-by-Step
- Identify the slope (m) and y-intercept (b).
- Plot the y-intercept on the graph. This is the point (0, b).
- Use the slope to find another point. From the y-intercept, use the slope to find another point on the graph. For example, a slope of 2 means you go up 2 units for every 1 unit you go to the right.
- Draw the line through the points. This line represents the equation.
Interactive Practice
Use this interactive tool to practice graphing linear equations: