Slope Intercept Form

y=mx+b is called slope-intercept form. This is the form that is most commonly used for graphing linear equations, although we’ll see at least one other later on.

We can use a t-chart to graph the equation. y=3x-7

 

The y-intercept is the b value. We just take this and graph it on the vertical axis. The slope is the m value. To graph we begin by finding the intercept, then graph the rest by using the slope.