Question

Convert the circle equation from standard form to general form x2 + (y + 4)2 = 29

Answer 1

We have the following expression,

$x^2+(y+4)^2=29$

By expanding the term in the variable y, we get

$x^2+y^2+8y+16=29$

By moving 29 to the left hand side, we have

$x^2+y^2+8y+16-29=0$

Therefore, the circle equation in general form is given by

$x^2+y^2+8y-13=0$