Question

If a point (x, y) in an OXY-plane is equidistant from (-1, 1) and (4, 3), then:

विकल्प

• 10x +4y = 23

• 6x + 4y = 23

• – x + y = 7

• 4x + 3y = 0

Answer 1

10x +4y = 23

Explanation:

Point (−1,1) (4,3) are equidistant from (x, y)

`∴sqrt(("x"+1)^2+("y"-1)^2)=sqrt(("x"-4)^2+("y"-3)^2)`

x² + 1 + 2x + y² + 1 − 2y

= x² + 16 − 8x + y² + 9 − 6y

10x + 4y = 23