Question

what is the slope of the line (-6,4) and (-5,-9)

Answer 1

you have 2 points
(-6,4)(-5,-9)
(x1,y1)(x2,y2)

use this equation with the labeling I put below

\[slope = \frac{ y2 - y1 }{ x2 - x1 }\]

This will give you your slope

Answer 2

Also don't forget, when you have a number MINUS a NEGATIVE...you add