Answer:
-10
Step-by-step explanation:
[tex]\boxed{slope = \frac{y1 - y2}{x1 - x2} }[/tex]
(x₁, y₁) is the first coordinate and (x₂, y₂) is the second coordinate.
Slope
[tex] = \frac{30 - 20}{ - 4 - ( - 3)} [/tex]
[tex] = \frac{10}{ - 4 + 3} [/tex]
[tex] = \frac{10}{ - 1} [/tex]
= -10
