Equations of straight lines
When working with straight lines, there are often many ways to arrive at an equation. Let's see:
Find the equation of the line that goes through two points P(x 1,x2) and Q(y1,y2)
Firts find the slope using
and then use the formula:
Write the slope-intercept form of the equation of the line with the slope 2 that contains the point (-4,-5).
Use the slope-intercept form to find b: