How do you find the slope of $x=8$ ?

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Answer 1 · 2016-07-15T14:30:02

The slope of $x=8$ is undefined

slope is defined as $("change in "y)/("corresponding change in " x)$

...but since $x$ is a constant, the $"corresponding change in "x$ will always be zero

...and division by zero is "undefined"

How do you find the slope of x=8x=8?