Answer:
-1/3
Step-by-step explanation:
→ Write down 2 coordinate pairs
(-9 , 11) and (-3 , 9)
→ Write down the slope formula
(y₂ - y₁) ÷ ( x₂ - x₁ )
→ Substitute in the numbers
( 9 - 11 ) ÷ ( 9 - - 9 )
→ Simplify
