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Question 6
Find the slope of the line passing through the points (11,-5) and (11,6)


Sagot :

There are two ways to approach this.

Option #1:

Use the slope formula [tex]m = \dfrac{y_2-y_1}{x_2-x_1}[/tex].

    [tex]m= \dfrac{6-(-5)}{11-11} = \dfrac{11}{0}[/tex]

That value is undefined, so the slope is undefined.

Option #2:

Because the two points have the same x-value, they will be vertically above/below one another.  This means your line is a vertical line and the slope of a vertical line is undefined.

Either way, your slope is undefined.