Graphing linear equations

Graphing Linear Equations

Graphing linear equations is an essential skill in precalculus mathematics. A linear equation is an equation of the first degree, meaning it has no exponents greater than one. The general form of a linear equation is:

y = mx + b

In this equation, m represents the slope of the line, and b represents the y-intercept, which is the point where the line crosses the y-axis.

Understanding Slope

The slope of a line indicates its steepness and direction. It is calculated as the change in y divided by the change in x, often referred to as