Identify the given information: two points, one point and slope, or a graph
If given two points, find the slope using (m=frac{y_2-y_1}{x_2-x_1})
If given one point and slope, use the slope directly
Use point-slope form: (y-y_1=m(x-x_1))
Substitute the known point and slope into the formula
Simplify the equation
If needed, convert to slope-intercept form: (y=mx+b)
If needed, solve for (b) by substituting a point into (y=mx+b)
Write the final equation of the line