Question

Find the distance of a point (7 , 5) from another point on the x - axis whose abscissa is -5.

Answer 1

Let the point on x - axis be (x , 0) given abscissa is -5.

∴ point is P (-5 , 0)

Let  (7 , 5) be point A 

AP = `sqrt ((7+5)^2 + (5 - 0)^2)`

`= sqrt (144 + 25)`

`= sqrt 169`

= 13 units