Answer
C) $x-y > -3$
Work Step by Step
(0,3) and (-3,0)
$m = (3-0)/(0--3)$
$m = 3/3 = 1$
$y=mx+b$
$3 = 0*1 + b$
$3 = 0 + b$
$ 3 = b$
$y=x + 3$
(0,0) is part of the solution set, so we use the $\lt$ sign
$y \lt x+3$
$y \lt x+3$
$y*-1 \lt (x+3)*-1$
$-y \gt -x-3$
$-y+x \gt -x-3+x$
$x-y \gt -3$