1. ## Inequalities by graphing

y>= x +3
y<= 3-x

2. Originally Posted by sdinulescu
y>= x +3
y<= 3-x
Draw the line $y=x+3$, then the first inequality is satisfied by points on and above the line.

Draw the line $y=3-x$, then the second inequality is satisfied by points on and below the line.

Both are satisfied by points on and above $y=x+3$ and on or below $y=3-x$

CB