Question

http://prntscr.com/5a5slt

Answer 1

horizontal lines have a slope of undefined
vertical lines have a slope of zero
So is this line horizontal or undefined?

Answer 2

horizontal

Answer 3

So since it is a vertical line the slope is 0

Answer 4

really?

Answer 5

oops I switched the slopes...

Answer 6

i thought horizontal was up?

Answer 7

horizontal lines have a slope of 0 and vertical lines have a slope of unefined.

Answer 8

Remember horizontal and horizon.

Answer 9

So the slope of this line undefined because it is vertical

Answer 10

This can help you:
http://www.purplemath.com/modules/slope.htm

Answer 11

oh ok thanks

Answer 12

No problem :D