Question

How do i find which ordered pair
a. (3,2)
or
b.(-1,4)
is a solution of x>4.

Answer 1

Which is the x value of (3,2)?

Answer 2

I just don't understand how to answer this, i am sick at home and i didn't see the actual lesson. The x value of (3,2) is 3, but i still don't understand.

Answer 3

Ok. 3 is x.

The sentence is x>4. That says x is greater than 4. Your x value is 3. Replace x with 3.
3>4. Is that true?

Answer 4

Ummm no but how am i supposed to know what ordered pairs fit/;

Answer 5

well not fit..but are the solution

Answer 6

So now we know that the first ordered pair does not work because 3 is not greater than 4.

Answer 7

Let's try the second ordered pair. What is the x in the second ordered pair?

Answer 8

but -1 isn't greater than 4 either

Answer 9

My friend told me i have to substitute...how do i do that?

Answer 10

You just did substitute. You substituted 3 for x to show that the first ordered pair doesn't work and then you substituted -1 for x to show that the second ordered pair doesn't work either. So either you copied the problem wrong or there are more choices that you didn't post or you can just write down that neither ordered pair works.

Answer 11

Let me show you on a graph. x=4 is a vertical line. Do you know that?

Answer 12

But what do i do with the Y value..?

Answer 13

Nothing. Your inequality says nothing about y

Answer 14

I dont understand graphs really well...

Answer 15

Do you know that x = 4 is a vertical line or not?

Answer 16

nopee

Answer 17

Have you studied graphing lines yet?

Answer 18

yepp

Answer 19

I know how to graph, but like looking at an equation, i wouldn't be able to immediately tell if it is vertical or horizontal or whatever.

Answer 20

I see you have this question posted in two places. If you want me to help you I will. If you want Hero to help you just say so. He is very good and he can help you too. But jumping back and forth between the posts will not help you.

Answer 21

Hero helped me

Answer 22

@Mertsj, thanks for the complement

Answer 23

ok good.
yw Hero

Answer 24

Youree confusingg kindaa/:

Answer 25

but thank you for trying

Answer 26

Actually, @mertsj is probably better than me at explaining things

Answer 27

I just thought of the idea to show you graphically what was happening (and luckily), you understood it.