Question: If the equation x^2 + y^2 = 36 is changed to x^2 + (y+3)^2 = 36, what effect will this have on the graph.
I think that it will slide it 3 units up, but I'm not a hundred percent sure.
You may luv maths but it's hard if the conscious does all the work.
Basically, the equation of a circle is Pythagoras' theorem applied to
all points on the circumference and the centre.
The distance formula is also Pythagoras' theorem
where are the x and y co-ordinates of the circle centre.