Does the point (_2.5, 3.5) lie inside,outside or on the circle x^2+y^2=25 ?

1 Answer
Mar 14, 2018

The point is inside the circel

Explanation:

x2+y2=25x2
y=25x2
y=r2x2
r2=25
r=5

p1=(2.5,3.5)
2.52+3.524.301<5
The point is inside the circel

graph{(x^2+y^2-25)((y-3.5)^2-0.01+(x-2.5)^2)=0 [-11.1, 11.09, -5.55, 5.55]}