For this case we have that by definition, the slope of a line, is given by:
[tex]m = \frac {y2-y1} {x2-x1}[/tex]
We have then:
[tex](x2, y2) = (4, 5)\\(x1, y1) = (- 2, 3)[/tex]
Substituting values we have:
[tex]m = \frac {5-3} {4 - (- 2)}[/tex]
Rewriting we have:
[tex]m = \frac {2} {4 + 2}\\m = \frac {2} {6}\\m = \frac {1} {3}[/tex]
We observe that the slope is a positive number.
Answer:
Line AB has a slope that is:
c. positive