Question

Which is the slope of the line that passes through the points (12, -6) and (12, 3)?

Answer 1

Undefined

Explanation:

Slope=y2-y1/x2-x1

3-(-6)=3+6

9

12-12=0

9/0 is undefined

Answer 2

use the slope equation: (y2-y1) / (x2-x1)

(3 -(-6) / (12-12) (plug in the values)

9/0 the slope is undefined anytime there's a denominator of 0

Explanation:

I hope this helps :)