Question 147487
x^2/4-y^2/16=1
y=x
Since y = x, substitute for y
{{{x^2/4 - x^2/16 = 1}}}
{{{4x^2/16 - x^2/16 = 1}}}
{{{3x^2/16 = 1}}}
{{{3x^2 = 16}}}
{{{x^2 = 16/3}}}
{{{x = +4/sqrt(3)}}}
{{{x = -4/sqrt(3)}}}
{{{x = +4*sqrt(3)/3}}}
{{{x = -4*sqrt(3)/3}}}