Question 1023376
Use the equation of the line passing through two given points
{{{(x-x[1])/(x[2]-x[1])=(y-y[1])/(y[2]-y[1])}}}
{{{(x-0)/(4-0)=(y-0)/(-4-0)}}}
{{{(x)/(4)=(y)/(-4)}}}
{{{x=-y}}}
{{{x+y=0}}}