The slope (Meaning or Definition): The slope of a line is the number of units that a line rises or drops vertically for each unit of horizontal change heading in the (right direction). Note that the rise of a slope has a sign either negative(down) or positive (up) but the run is always to the right.
The general form of the equation of a line is given by Ax+By+Cy=0
The slope intercept form of the equations of a line is given by y=mx+b
The point slope form of the equation of a line is given by y-y_{1}=m(x-x_{1})
The vertical form of the equation of a line is given by x= a
The horizontal form of the equation of a line is given by y = b