Question

Which part of the graph best represents the solution set to the system of inequalities y ≤ x + 1 and y + x ≤ –1?

Answer 1

any ideas

Answer 2

@PinkSapphire any ideas :O

Answer 3

@mathmale @MathLegend

Answer 4

@halorazer

Answer 5

First, get y by itself for the second equation so after you do it, it will look like this: \[y \le-1-x\]

Answer 6

ok so y int 0.-1 and rise over run -1 /1 ?

Answer 7

Your slope is -x and your y-intercept is -1

Answer 8

ight

Answer 9

So find each equation in the graph. Which one goes with which?

Answer 10

i dont really get it ?

Answer 11

like its the line touvching grahp d?

Answer 12

confused af

Answer 13

There are two lines on the graph right? Pretend that the colors are not there right now...

Answer 14

ok 2 lines ignore colours then what xD

Answer 15

Let's start with the first equation...\[y \le x+1\]
What's the y-intercept and the slope of the line?

Answer 16

I mean the equation...

Answer 17

slope 1, y int 1?

Answer 18

Yes, so now which line does the equation work with?

Answer 19

The one that increases or decreases?

Answer 20

the 1 going from bottom Left to top riight?

Answer 21

Yes, correct! That line is increasing-remember that okay?

Answer 22

yes

Answer 23

so whats the next step to find which section

Answer 24

Plug in 0 for x and y.
\[0 \le 0+1\]
\[0 \le 1\]
Is 0 less than or equal to 1? Is this inequality true? If it is than color the part where (0,0) is.

Answer 25

yuh it is but i dont get what u said after that o_O

Answer 26

It's hard to explain...wait a second.

Answer 27

What is this topic called again? I forgot :(

Answer 28

systems of linear equations i thinkkk

Answer 29

Watch this video: http://www.youtube.com/watch?v=r5imr_kvk6M

Answer 30

ok thanks im hopeless at maths ;)

Answer 31

Do you get it?

Answer 32

im gona watvh the vid i get tight up 2 the adding the 0 bit, is it D
?

Answer 33

Correct! Good job!

Answer 34

i actually love you hahah , will u help me with 1 more:o

Answer 35

Okay :)

Answer 36

The tables below show the values of f(x) and g(x) for different values of x.

f(x) = 2(3)x

x f(x)
-2 0.22
-1 0.67
0 2
1 6
2 18


g(x) = 3x + 9
x g(x)
-2 9.11
-1 9.33
0 10
1 12
2 18


Based on the tables, what is the solution to the equation 2(3)x = 3x + 9?
x = 0

x = 2

x = 12

x = 18

Answer 37

You should ask someone else to help you on this one...I haven't learned it yet. Sorry :(

Answer 38

ok np :)

Answer 39

ty off b4 :)

Answer 40

Okay bye :)