Question

Determine the equation of the circle graphed below.

Answer 1

Step-by-step explanation:

$(x - h) {}^{2} + (y - k) {}^{2} = {r}^{2}$

here

r = 7. (the circle is symmetrical with y - axis )

h = 0. and k = 1

Thus equation of circle is,

$(x - 0) {}^{2} + (y - ( - 1)) {}^{2} = {7}^{2}$

x^2 + (y+1)^2 = 49