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

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Answer 1 · 2016-07-15T14:30:02

The slope of $x = 8$ $x=8$ is undefined

slope is defined as $\frac{change in y}{corresponding change in x}$ $("change in "y)/("corresponding change in " x)$

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

...and division by zero is "undefined"

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