Question

Can someone please check this for me?
graphing linear inequalities

Answer 1

@phi

Answer 2

Everything looks good. The only thing I would add is when you check your test points, I'd simplify both sides until there is a single number on both sides. For instance, in #1d, I would put...


Test point (10,25)
y < -x+25
25 < -10+25
25 < 15 ... false


Test point (5,10)
y < -x+25
10 < -5+25
10 < 20 ... true


Shaded region contains the point (5,10). The shaded region is below the boundary line

----------------------------------------------------------------------------


Also, in #4, make sure that the boundary line is a dashed line

Answer 3

Thanks :):)