How to Derive the General Equation of a Straight Line ax+by+c=0 through y=mx+c

[@brainboy6655]

Fun little proof I never knew I needed! Just discovered your channel not long ago but I'm hooked! (Very much not a math person)

[@mathematics.proofs]

Thanks for stopping by. Yes, even for those in mathematics, very simple equations, but which are very useful come up all the time. The other day I came across (x/a)+(y/b)=1 for a straight line, which surprised me!