Question

which correctly describes how the graph of inequality 4x -2y > 20 is shaded?

A. Above the solid line
B. Below the solid line
C. Above the dashed line
D.Below the dashed line

Answer 1

@pooja195 @Hero

Answer 2

Someone please help ;-;

Answer 3

anyone?

Answer 4

Please no direct answers, Just want to know the steps so I can do the rest on my own

Answer 5

Well, one way to see this more easily is to get it into something like y=mx+b form so you will know a little about the line. Then test some.

Answer 6

ye.... wat he said. c:

Answer 7

so you have to play around with it correct?

Answer 8

I'll do the simple example, y<x+1. You could be given that as:

y-x<1

And yes, it is manipulating it to get it into the form where it is clear what the intercept point is.

Answer 9

On y<x+1

The intercept is 1. So when x is 0, y is 1... BUT, it is an inequality. That means y is not really 1. It is less than 1 in this case. So that tells me that wherever the line is, the shading for the y values must be below the line. The line would also be dashed because it is is < and not \(\le\).

Answer 10

so is there any chance we can start you know process of elimination or we cant?

Answer 11

Once you have it in that form, it is pretty easy to tell if it will be above or below. Just need to be careful if you do any division by a negative because that changes < into > or > into <.

Answer 12

\(\ge\) and \(\le\) are solid lines.
> and < are dashed lines.

That alone elimiantes 2 answers.

Answer 13

so it's solid?

Answer 14

wait i mean dashed

Answer 15

Yah. 4x -2y > 20 uses >. Even if it flips direction it would be <. So it must be dashed.

When you get it into y=mx+b form you know the other part:

y>mx+b means y is greater (above) the line
y<mx+b means y is lesser (below) the line

Answer 16

so it has to be C or D

Answer 17

Yes.

Answer 18

Think your trying to say it's D correct?

Answer 19

he gone.....

Answer 20

@e.mccormick @ganeshie8 @EclipsedStar

Answer 21

chico..... ur correct c:

Answer 22

really? :D

Answer 23

eh ye.... ig

Answer 24

Yes, I was gone... the joys of moderaton.

4x -2y > 20
-2y > -4x + 20
y < 2x - 10

So yes, below the line.

Answer 25

lol xD thank you so much

Answer 26

With your helpful comments now I understand