Are the points G, Y, and C collinear?

Answer:
No, they aren't.
Step-by-step explanation:
They are not all collinear points. Collinear points are points lying in a row or on a straight line. However in this figure G and C lie on the same line and are collinear but Y doesn't lie on the line, but elsewhere on the plane. So, we can say they are non- collinear.
Hope this helps!