Answer:
Undefined slope:- the line is vertical
Explanation:
The slope for the line joining the points (x1, y1) and (x2, y2)
= (y2-y1)/(x2-x1) so here it is:
(8 - (-13))/ (17-17)
= 21/0
As the denominator is zero the line is vertical.
undefined
We can use the slope formula
m = ( y2-y1)/(x2-x1)
= ( 8 - -13)/ ( 17-17)
= ( 8 +13)/ ( 17-17)
= 21/ 0
We can not divide by 0, so the slope is undefined
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