Question 975547
When {{{x=0}}},
{{{y^2/9=1}}}
{{{y^2=9}}}
{{{y=3}}} and {{{y=-3}}}
(0,3) and (0,-3)
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When {{{y=0}}},
{{{x^2/16=1}}}
{{{x^2=16}}}
{{{x=4}}} and {{{x=-4}}}
(4,0) and (-4,0)
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