What are some examples of a negative, positive, and undefined slope?

Answer 1

Like the person said before me, but x=0 is not an example of an undefined slope...

An undefined slope is when there is an asymptote in the function, for eg

Answer 2

Undefined Slope Example

Answer 3

A negative slope is like a line with the equation
y = -2x +4 [m is negative]
(or any other line which goes up to the second quadrant or top left area of the graph)
A positive slope is like a line with the equation
y = 2x +4 [m is positive]
(or any other line which goes up to the first quadrant or top right area of the graph)
An undefined slope is lik a line with the equation
x = 4 [there is no m defined]
(or any other vertical line)

Answer 4

y=-x, the slope is negative 1
y=x, the slope is 1
x=0, the slope is undefined

Answer 5

well, slope is (y1-y2)/(x1-x2).
if (y1-y2) is positive, but (x1-x2) is negative, the slope is negative.
if (y1-y2) is negative, and (x1-x2) is positive, the slope is negative.
if (y1-y2) is positive, and (x1-x2) is positive, the slope is positive.
if (y1-y2) is negative, and (x1-x2) is negative, then the slope os positive.
if (y1-y2) is 0 (meaning y1=y2), and (x1-x2) is anything besides 0, then the slope is 0.
If both (y1-y2) and (x1-x2) are 0, then the slope is undefined.
if (x1-x2) is 0, and (y1-y2) is anything, then the sliope is undefined.
here is an example:
if the following two points are plotted:
(0,-1) <---1
(0,2) <-----2
then the slope is:
((-1)-(2))/((0)-(0)=-3/0 which is undefined.
switch the points around:
(-1,0)
(2,0)
the slope is:
(0-0)/(-1-2)=0/-3=0
If they are further mixed up:
(-1,2)
(0,0)
the slope is:
(2-0)/(-1-0)=2/-1=-2
or:
(2,-1)
(0,0)
slope:
(-1-0)/(2-0)=-1/2
i hope that helps.