SOLUTION: How do I find the slope when the x-intercepts are exactly the same? For example my give points are: (-4,3) and (-4,5). Thank you. Martha

Algebra ->  Linear-equations -> SOLUTION: How do I find the slope when the x-intercepts are exactly the same? For example my give points are: (-4,3) and (-4,5). Thank you. Martha      Log On


   

Question 511247: How do I find the slope when the x-intercepts are exactly the same?
For example my give points are: (-4,3) and (-4,5).
Thank you.
Martha
Found 2 solutions by solver91311, lwsshak3:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The slope of a vertical line is undefined.


John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism

Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
How do I find the slope when the x-intercepts are exactly the same?
For example my give points are: (-4,3) and (-4,5)
**
slope=∆y/∆x=rise/run=(y1-y2)/(x1-x2)=(5-3)/(-4-(-4))=2/0=undefined
What you have here is a vertical line, x=-4. By definition, the slope of a vertical line is undefined.