Is this undefined?

Question

Answer 1

The slope or the straight line shown is

m=[-5-(-2)]/[4-(-1)]=-3/5.

Answer 2

Of course not. Only vertical lines have undefined slope.

Answer 3

Slope of line passing through (-1, -2) and (4, -5) is

                       -2 -  -5      3

               m = ---------- = ---- = -3/5  ...............ANS

                       -1 -  4      -5

Answer 4

No... the rise is  negative  as you go left to right, and  the run is + as you go left to right   ...

find each number and  take  slope  m =  { rise ] / {run} 

i get a negative  real number for the slope.

Answer 5

Is it a vertical line?  The answer to that question is the answer to your question.