Question #22910

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Answer 1 · 2017-04-09T23:17:21

X =8 does not have a defined slope.

Slope is the change in y divided by the change in x

$\frac{y_{1} - y_{2}}{x_{1} - x_{2}}$ $(y_1 -y_2)/ (x_1- x_2)$

Take two points on the line ( 8, 2) , ( 8,0)

Put these points into the equation for slope.

$s l o p e = \frac{2 - 0}{8 - 8}$ $slope = ( 2-0)/(8-8)$

$\frac{2 - 0}{8 - 8} = \frac{2}{0}$ $(2-0)/(8-8) = 2/0$

Dividing by 0 is undefined.

X =8 has a slope that is undefined.