Question

HELP! :O

Answer 1

1. Which graph is the graph of the inequality y > 2x + 1?

Answer 2

Graph it like you would an equality.
y-intercept of 1
slope of 2

Then shade everything above the line because y>...

Answer 3

now would the line be solid or dotted??

Answer 4

\(<,>\rightarrow~\text{dotted}\\
\le,\ge\rightarrow~\text{solid}\)

Answer 5

Also, so it would fall on 1 on the y axis and what would it fall on on the x axis?

Answer 6

Well, just graph it out! You have everything that you need to do so, and an easy line at that.

I have to go now, hopefully you can find someone else to finish up here! Good luck!

Answer 7

And how do I know if the line goes this way \ or this way /

Answer 8

Will you help me Kalina? :)

Answer 9

I just want to know how to do it!

Answer 10

It's this way / if the slope is positive, \ way if slope is negative.

Answer 11

Okay, and so how do I know if it is positive or not? How will I be able to tell?

Answer 12

You were given the slope by the equation...and Austin also pointed it out for you. In the form y=mx+b, m is the slope.

Answer 13

Jon I remember these and they were tough for me too.

Answer 14

Pm me

Answer 15

@wolfe8, ok. Thank you. So I know that 1 is placed on the y axis, but what is placed on the x axis?

Answer 16

Well, what is the value of y when the line intersects the x axis? :) Try sketching it if it would help. When you know what y is, substitute it into the line equation and find x. Of course, this is the hard way :)

Answer 17

would it be 2...?

Answer 18

Not quite. Tell me what y is when the line intersects the x axis.

Answer 19

I have no clue! it would still be 1, would it not?

Answer 20

Here's an example of a straight line graph Can you tell me what y is at that point now?

Answer 21

-1?

Answer 22

Hmm. I'm not sure how else to show you. Ok at the point I pointed in the picture, tell me the y value at that point.

Answer 23

Oh, 1 or 2

Answer 24

Wouldn't it be 0?

Answer 25

....? The arrow is not pointing at the middle though. Lol

Answer 26

Jon, can you make a new post? I need to tell you a lot of things about graphs and the coordinate system