Question 165056
y^2/25 -  x^2/4 = 1
y^2/25 = x^2/4 + 1
y^2 = 25x^2/4 + 25
{{{y^2 = (25x^2+100)/4}}}
y=+-{{{(5sqrt(x^2+4))/2}}}
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Ed
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{{{graph(500,500,-10,10,-10,10,(5sqrt(x^2+4))/2,-(5sqrt(x^2+4))/2)}}}