Question

If the centre and radius of the circle is (3,4) and 7 units respectively,then what is the position of the point AB with respect to the circle ? Please reply as soon as possible . thank you

Answer 1

centre = (3,4)
Radius = 7

The equation of the circle will be:
x^2 + y^2 -6x -8y+24= 0

The position of point AB is determined by replacing x,y by the coordinates of poiny AB in the equation .

x'^2 + y'^2 -6x' -8y' +24

If the value of the equation is
1. less than zero then the point lie inside the circle.
2 equal to zero then the point lie on the circle.
3. greater than zero then the point lie outside the circle.

hope this helped you,
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