Answer:
A
Step-by-step explanation:
Calculate the slope m using the slope formula
m =
with (x₁, y₁ ) = (- 3, 4 ) and (x₂, y₂ ) = (2, - 1 )
m = = = = - 1 → A
21
Use PEMDAS.
6*3=18
18/3=6
22+5=27
27-6=21