Flashcards in The Equation of a Straight Line & Parallel and Perpendicular Lines Deck (3):
What are the three equations that can be used to describe a straight line?
- y-b = m(x-a) for point (a,b) on the line
- y = mx+c
-ax+by+c = 0 where a, b and c are integers
What is the equation for the midpoint of a line segment?
Midpoint of the line (ab) = ((xa+xb)/2 , (ya+yb)/2)