human
Given a sketch of a circle with centre at the origin, write its equation in the form x² + y² = r² What is the equation of this circle? ![A set of axes with a circle drawn. The circle goes through the points (4,0), (0, -4), (-4,0) and (0,4). ]() \( x^{2}+y^{2}=8 \)
gpt
Mixes up squaring and multiplying by 2 or doubling