Equations written in slope-intercept form follow a specific format.
y=mx+ b
In this form, m represents the slope of the line and b represents the y-intercept. Below we highlight the slope m and y-intercept b.
y=2x - 3 ⇔ y=2x+( -3)
The slope is 2. The y-intercept is - 3, so the graph crosses the y-axis at the point (0, - 3).
Graphing the Equation
A slope of 2 means that for every 1 unit we move in the positive horizontal direction, we move 2 units in the positive vertical direction.
m=2/1 ⇔ rise/run=2/1
To graph the equation, plot the y-intercept and then use the slope to find another point on the line.
