## Algebra 1

x-intercept: -3 y-intercept: -3 $x+y =-3$
(-3,0) and (0, -3) are given $m = (0--3)/(-3-0)$ $m = 3/-3 =-1$ $y=mx+b$ $0= -1*-3 +b$ $0 = 3 + b$ $0-3 =3 + b - 3$ $-3 = b$ $y=-x -3$ $y+x = -x -3 + x$ $x+y =-3$