Question

http://static.k12.com/eli/ecollege/589/7_31557/2_30739_5_31639/ad9ca59ca671f7f496c601b11e68f731c6b73d9a/media/2d111f61a7e43c98d71a0510475e09ca385d66e8/mediaasset_213157_1.gif

Determine whether the given has a positive slope, a negative slope, a zero slope, or an undefined slope.
(Points : 1)
positive slope
negative slope
zero slope
undefined slope


Determine whether the given line has a positive slope, a negative slope, a zero slope, or an undefined slope.
http://static.k12.com/eli/ecollege/589/7_31557/2_30739_5_31639/ad9ca59ca671f7f496c601b11e68f731c6b73d9a/media/4b03c9a0d60005328a784d2ab84548b8ba9a3158/mediaasset_1312636_1.jpg
(Points : 1)
undefined slope
zero slope
negative slope
positive slope

Answer 1

the first line looks horizontal
the slope of a horizontal line is zero

Answer 2

okay

Answer 3

the second link does not work
if the line is horizontal the slope is zero
if the line is vertical , the slope is undefined
if the line is going up (reading from left to right) the slope is positive
if the line is going down the slope is negative