Answer:
Step-by-step explanation:
I think now you can figure it out. let me know if needed more clarification. It will help you to get started
slope = -
To calculate the slope m use the slope formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (20, 8) and (x₂, y₂ ) = (9, 16)
m = = = -
SOLUTION
(a)
8) red and 1, red and 2, red and 3, blue and 1, blue and 2, blue and 3
So answer is 6
9) 0.5*1/3 = 0.17
10) 0.5*2/3 = 0.33