Question

Find the equation of line passing through the points A(-1,3) and B(0,2). Hence show that the points A,B and C (1,-1) are collinear.​

Answer 1

Answer:

Step-by-step explanation:

The equation of line passing through

A (-1,3) and B(0,2) is

y-3=[(2-3)/(0+1)](x+1)

=> y-3=-1(x+1)

=> y-3=-x-1

=> x+y-3+1=0

=> x+y-2=0

The point C is C(1,-1)

Now 1+(-1)-2=1-1-2=-2≠0

So the points A,B,C are not collinear.