Question

Which inequality will have a shaded area above its graph?

2x − y ≥ 4

4x + 3y < 6

x − 9y ≤ 1

x − 3y > 4

Answer 1

Do you remember how to tell where the shaded region would be using just the signs?

Answer 2

no

Answer 3

I find it helpful to covert all the equations to y=__ first.

When you convert the equations, what to you get?

Answer 4

I'm not sure, I don't get this concept whatsoever.

Answer 5

Alright, I'll do the first one, then tell me the other three, okay? :)
\[2x-y \ge4\]\[-y \ge4-2x\]\[y \ge2x-4\]
You can use this eqyation as a y=___ equation to graph the line.

Answer 6

If I can, I will try though.

Answer 7

I will be back in a bit. I have to go eat.

Answer 8

Have a lovely meal. :)

Answer 9

back.

Answer 10

Welcome back.

Answer 11

Have you been able to figure out the other equations?

Answer 12

I got C, because
-9y ≤ -x + 1
y ≥ (x/9) - 1/9

Answer 13

@JackSmiley you're answer is wrong.

2x − y ≥ 4
-2x -2x

-y ≥ -2x + 4
/-1 /-1 /-1

y ≤ 2x - 4

Answer 14

The y can't be negative. And the sign changes when its multiplied or divided by a negative number.