lesson#11 How to write equation of straight line? (2) How to write the equation of a slant line (non-vertical and non-horizontal line)? CASE-1: If slope and y-intercept of a non-vertical line are given, we will use Slope-intercept from: y=mx+c here m=slope and c=y-intercept Math Ex 4.3 Part 11 Slope Intercept From of Equation of Straight Line. Theorem: Equation of a non-vertical straight line with slope "m" and y-intercept "c" is given by y=mx+c SPECIAL NOTE: If the line passes through origin then c=0 Equation will become y=mx Math Ex 4.3 Part 11 CASE-2: If a point and slope of a non vertical line are given, we will use Point-Slope from: y-y1=m(x-x1) here (x1-y1) is given point and "m" is slope. Introduction to Analytical Geometry Chapter No 4 Exercise No 4.3 Mathematics part 2