Unit 1: Equations of Parallel and Perpendicular Lines

Standard form

Standard form

Ax+By=C

Slope Intercept

y=mx+b

Point-Slope

y-y1=m(x-x1)

m=slope, (x,y) point

ways to find equation of straight lines

given two points, given slope and a point, use point- slope

given two points

find slope, then plug into y=mx+b w either point

given a slope or point

plug slope and point into y=mx+b, solve for b and rewrite