Question

How do you write the equation of a line in slope intercept, point slope and standard form given Point: (-8, 1) Slope: m is undefined?

Answer 1

If the slope is "undefined" the line is vertical;
neither the slope-intercept nor the point-slope forms exist.
The standard form would be `color(green)(x=-8)`

Explanation:

When we say a slope is undefined, we mean that the value of `x` is a constant `rArr Deltax`, the change in `x` is always `0` and since the slope is defined as `(Deltay)/(Deltax)` the slope is "undefined".