Answer:
9. (1/3)
10. (0, -2)
11. y = (1/3)x - 2
Explanation:
(x₁, y₁) and (x₂, y₂)
(-3, -3) (0, -2)
9.
y₂ - y₁ -2 - (-3) -2 + 3 1
m = ------------ = ------------ = ------------ = -------
x₂ - x₁ 0 - (-3) 0 + 3 3
10.
y = (1/3)x - 2
y = -2
y-intercept: (0, -2)
11.
y - y₁ = m (x - x₁)
y - (-3) = (1/3) (x - (-3)
y + 3 = (1/3) (x + 3)
y + 3 = (1/3)x + 1
-3 -3
y = (1/3)x - 2
I hope this helps!