Question 938130
Use the distance formula
{{{ d^2 = ( x - 0 )^2 + ( -3 - 0 )^2 }}}
{{{ d^2 = x^2 + 3^2 }}}
---------------------
{{{ d = 5 }}}
{{{ 5^2 = x^2 + 3^2 }}}
{{{ 25 = x^2 + 9 }}}
{{{ x^2 = 16 }}}
{{{ x = 4 }}}
{{{ x = -4 }}}