How To Write Undefined Slope

Any vertical line like the one shown below will have an undefined slope.

How to write undefined slope. This is also the case for all the lines above. Since there exist no number you can multiply 0 by to get 3 we say that the slope is undefined. As a vertical line will always make an angle the size of of 90 with the positive direction of the x axis. You also know how to identify whether the slope is positive or negative when the line is written in y mx b form. M represents the slope of the line so if m is positive the slope is positive.

These lines are always of the form x c where c is some number. M 4 1 3 3 m 3 0. Notice that for the line in the middle the x values are the same for both points x 1 x 2 1. Standard form of linear equations. An undefined slope means the slope is too large to describe or m is infinity.

How do you write an undefined slope in standard form. To understand the discussion below you should be familiar with finding the slope using the slope formula. Tan 90 undefined. A slope can also be found to be undefined with the other formula for finding the gradient m of a straight line m tan θ. 2 5 slope undefined step 1.

When you see the slope is undefined then the line is a vertical line or at x a where a is the x intercept. Standard form of a linear equation is ax by c a x b y c where a b a b and c c are integers a a is. The slope of a horizontal line is zero.