Question 433105
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b>
Hi
Using the standard slope-intercept form for an equation of a line y = mx + b
  where m is the slope and b the y-intercept.  
Line Perpendicular to y=-x-3   and passes through   (0,0)
 y=-x-3 ( m = (-1/1))
NEw Line: Perpendicular Line will have slope that is the negative reciprocal,
 y = x + b   |Using ordered pair (0,0) to solve for b
 0 = 0 + b  
 0 = b 
  y = x
{{{drawing(300,300,  -15,15,-15,15, grid(1),
circle(0, 0,0.6),
graph( 300, 300,-15,15,-15,15,0,x))}}}