Question 42622
{{{ graph( 600, 600, -10, 10, -10, 10, sqrt(5x^2 + 25), -sqrt(5x^2 + 25) ) }}}
y^2 = 5x^2 + 25
y^2 - 5x^2 = 25
y^2/25 - x^2/5 = 1
a = 5
b = {{{sqrt(5)}}}
{{{a^2 + b^2 = c^2}}}
{{{25 + 5 = c^2}}}
{{{30 = c^2}}}
{{{sqrt(30) = c}}}
(0,{{{sqrt(30)}}}) and (0,-{{{sqrt(30)}}})