Question

Find the equation of the circle whose centre lies on the negative direction of y-axis at a
distance 3 units from origin and whose radius is 4 units.​

Answer 1

Step-by-step explanation:

A/q

ln negative direction

distance will be= -3(on y-axis side)

radius=4(given)

then,

Central form=(x-h)2+(y-k)2=r2

(x-0)2+{(y-(-3)}2=(4)2

X2+Y2+6y-7=0. ( this is the equation that we needed)

HOPE IT WILL HELP YOU

Answer 2

Answer:

x2 + y2 = r2 , and this is the equation of a circle of radius r whose centre is the origin O(0, 0). The equation of a circle of radius r and centre the origin is x2 + y2 = r2 .

Step-by-step explanation:

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