Question

a = b and
EXAMPLE 1. The equation of the circle which touches
X-axis at (3, 0) and passes through (1, 4) is given by​

Answer 1

the circles touches at (3,0 )

hence it centre would be 3,k

and when it passes through(

1,4)

A/q

by using dostance formula

(k -4)^2+( 3-1)^2=k^2

(k-4)^2+4=k^2

after solvung it we will get

k=5/2 so centre will be 5/2 and radius would be 3 cm