Question

2. Obtain equation of the passing through point A(2) and B (1,2)

​

Answer 1

Answer:

Answer

We know that the equation of line passing through points(x

1

,y

1

) and (x

2

,y

2

) is

y−y

1

=

x

2

−x

1

y

2

−y

1

(x−x

1

)

Therefore equation of line passing through points (1,1) and (2,−4) is

(y−1)=

2+1

−4−1

(x+1)

⇒(y−1)=

3

−5

(x+1)

⇒3(y−1)=−5(x+1)

⇒3y−3=−5x−5

⇒5x+3y+2=0