Circles Test 8...

The lines $$2x - 3y = 5 \ \ \& \ \ 3x - 4y = 7$$ are diameters of a circle of area 154 sq units. Then the equation of the circle is

For the points on the circle $$\displaystyle x^{2}+y^{2}-2x-2y+1=0$$, the sum of maximum and minimum values of $$4x + 3y$$ is 

The lines $$2x - 3y = 5$$ & $$3x - 4y = 7$$ are diameters of a circle of area $$154$$ sq units Then the equation of the circle is

The centre of a circle is $$( x -2 , x+1 )$$ and it passes through the points $$( 4 , 4 )$$ Find the value ( or values ) of $$x$$, if the diameter of the circle is of length $$\displaystyle 2\sqrt{5}$$ units. 

The equation circle whose center is $$(0,0)$$ and radius is $$4$$ is 

The equation of the circle drawn with the focus of the parabola $$(x-1)^2 - 8y = 0$$ as its centre and touching the parabola at its vertex is

Find the center-radius form of the equation of the circle with center $$\left( 4,0 \right) $$ and radius $$7$$

Two circles touch each other externally at C and a common tangent touches them at A and B. Which one is true?

The equation to the circle with centre $$(2, 1)$$ and touching the line $$3x + 4y = 5$$ is

What is the equation of a circle with center (-3,1) and radius 7?