The line L passes through the points A(1,3) and B(-19,-19). Find an equation of L in the form ax+by+c=0.
So the answer in the back of the book is: 11x-10y+19=0
But when I do it:
Gradient = y2-y1/x2-x1
So where did I go wrong?
Im guessing either a stupid mistake in there or the answer in the back of the book is wrong.