Answer:
A
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 ) = (0, 0) and (x₂, y₂ ) = (- 5, 5) ← 2 points on the line
m = [tex]\frac{5-0}{-5-0}[/tex] = [tex]\frac{5}{-5}[/tex] = - 1 → A
