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Determine whether the equation represents a circle, a point, or have no
graph
a) 1 – x2 – y2 = 0

b) x2+ y2 + x –y = 0

 Oct 29, 2021
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Determine whether the equation represents a circle, a point, or have no
graph

 

Hello Guest!

 

a)

1 – x^2 – y^2 = 0

\(y=\pm \sqrt{1-x^2}\)

is the equation of a circle.

b)

\(x^2+ y^2 + x –y = 0\)

\(y=\frac{1}{2}(1\pm \sqrt{-4x^2-4x+1})\ |\ wolfram\ alpha\)

is the equation of a circle.

laugh  !

 Oct 29, 2021

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