Question

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

a -8
b -1/8
c 0
d undefined

Answer 1

Explanation:

Its Undefined.

Reason

Slope (m) = y2 - y1/(x2-x1)

= 3-(-6)/(12-12)

=9/0

Undefined

You can clearly see this from the points. The x value has 2 different values for y... Which Makes the points not that of a function.