Question

Solve |5x – 8| > 12.
Answer

{x| -0.8 < x < 4}

{x| -4 < x < 4}

{x| x > 4 or x < -0.8}

{x| x < -4 or x > 0.8}

Answer 1

what foes absolute value mean @ramirokool ?

Answer 2

*does

Answer 3

if we had
|x|=2

what could x possibly be?

Answer 4

The magnitude of a real number without regard to its sign.

Answer 5

right, so |x|=2 means x could be what two numbers?

Answer 6

a 4 and a 0.8 ? their should be a negative.

Answer 7

I got C on my sheet.

Answer 8

You divide.

Answer 9

|x|=2 means that we ignore the sign of x - that is all

Answer 10

|4|=4
that's not 2, so no

Answer 11

|0.8|=0.8
also not 2, so not correct

Answer 12

Go step by step.

Answer 13

I am, are you lost in what i just said?

Answer 14

Nope.

Answer 15

@TuringTest Dude he just needs the answer :D

Answer 16

@hba do not assume that, he's working with me right now

Answer 17

ok, so considering things like that |-6|=6, and |0.88|=0.88
what could |x|=2 possibly be?

Answer 18

2

Answer 19

or...?

Answer 20

no or.

Answer 21

yes or, what is |-2| ?

Answer 22

but if it in the box would it be postive?

Answer 23

yes, so |-2|=?

Answer 24

2 ?

Answer 25

right, so |x|=2 means x could be what TWO numbers?

Answer 26

Any thing which comes between | | < this becomes positive :)

Answer 27

-2 and 2

Answer 28

correct :)

Answer 29

so for |x|=y that means either x=y or -x=y

Answer 30

-x =y

Answer 31

so you problem is
|5x – 8| > 12


based on what we just discussed, |5x - 8|>12 means that 12> what two expressions?

Answer 32

rather, 5x-8 could be what two numbers?

Answer 33

I still think it C cause that what I got, 0.8 and 4.

Answer 34

it's not C

Answer 35

|a|=b implies that either a=b or a=-b

Answer 36

My mistake D.

Answer 37

yes :)