Answer:
slope = - 1
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (4, - 1) and (x₂, y₂ ) = (- 1, 4)
m = [tex]\frac{4+1}{-1-4}[/tex] = [tex]\frac{5}{-5}[/tex] = - 1
