It’s 1. Apparently my answer is not long enough so I’m making it longer :(:
D the mathematical work shown sbove is correct as written
Answer:
C
Step-by-step explanation:
move the x over
-x+y=6
move the y over
-x = -y+6
times each number by a -
x=y-6
Step-by-step explanation:
Collinear points have the same gradient
find the gradient(slope) between AB first

Find the one for BC

Find the gradient between AC now

YOUR LAST STATEMENT NOW WILL BE
POINTS A,B AND C ARE COLLINEAR SINCE THE GRADIENTS BETWEEN THEM IS THE SAME!!!