what i do is look to see if point 0,0 is included.
as in subsitute 0 for x and y
0 is <= 10 so 0,0 is shaded for that one
0 is not < -1, so 0,0 is not shaded for that one.
< implies a dotted line, where <= implise a solid line.
The lower right is the only one that fits all this.
You could also put each equation in y=mx+b and draw the lines.
Then plug in 0,0 to see which direction to shade.
what i do is look to see if point 0,0 is included.
as in subsitute 0 for x and y
0 is <= 10 so 0,0 is shaded for that one
0 is not < -1, so 0,0 is not shaded for that one.
< implies a dotted line, where <= implise a solid line.
The lower right is the only one that fits all this.
You could also put each equation in y=mx+b and draw the lines.
Then plug in 0,0 to see which direction to shade.
