So point x1 y1 is actually at 0 b. Determine the slope of the line through the given points. The equation of the line is Type an equation.
A slope can also be found to be undefined with the other formula for finding the gradient m of a straight line m tan th.
There is no way for expression to be equal to 0. If the slope of a line is undefined then the line is a vertical line so it cannot be written in slope-intercept form but it can be written in the form. So the equation of the line is x a x a. You may already be familiar with the ymxb form called the slope-intercept form of the equation of a line.