Answer:
-1, equation is y=-x+2
Explanation:
slope = - 1
calculate the slope m using the slope formula
m =
with (x₁, y₁ ) = (0, 2) and (x₂, y₂ ) = (2, 0) ← 2 points on the line
m = = = - 1
5.3m questions
6.9m answers
= 
= - 1