Question

if the points (1,2) , (0,0) and (a,b) are collinear then a=​

Answer 1

Step-by-step explanation:

the points (1,2),(0,0) and (a,b)are collinear

s

So,

1/2(1(0-b)+0(b-2)+a(2-0))=0

1-b+0-0+2a-0=0

2a=-1+b

a=-1+b/2

Answer 2

Answer:

give collinear so

1/2 ×{1×{0-b}+a{2-0}}

-b+2a=0

2a=b