The standard form is just another way to write this equation and is defined as Ax By C where A B and C are real numbers and A and B are both not zero see note. Equation from 2 points using Point Slope Form. This is because division by zero leads to infinities.
Now lets discover more.
A common issue when we learn about the equation of a line in algebra is to state the slope as a number but have no idea what it represents in the real world. A point to take note of is that a vertical line and horizontal lines slope does not mean the same thing. X 1 y 1 is a known point. The equation of a horizontal line is then in the form.