Answer
y-int=0
x-int=-4,0,4
Work Step by Step
Make x=0 to find y-int.
y=(0)$\sqrt 16-0^{2}$
y=0
Make y=0 to find y-int
Find where each factor is equal to zero
0=x
0=16-$x^{2}$
x=-4,4
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