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Mathematics 7 Online
zarkam21:

Help please

zarkam21:

zarkam21:

zarkam21:

@jhonyy9

jhonyy9:

no there is the second interval use this too

zarkam21:

so choice c?

jhonyy9:

no what is the greatest value what can get x ?

zarkam21:

6

zarkam21:

oh so choice b ? :)

jhonyy9:

yes - but why ? can you explain it me ?

zarkam21:

Yes because 6 is the greatest value and the parenthesis means that its an open circle

zarkam21:

that it is the greatest value you can get

jhonyy9:

open circle mean that this value not can get just approach

jhonyy9:

ok ?

zarkam21:

yes makes sense so it would be choice b?

jhonyy9:

yes sure

jhonyy9:

clearly why ?

zarkam21:

because 6 is the largest value and choice b shows that?

jhonyy9:

and what is with -4 ?

zarkam21:

its the smallest value ?

zarkam21:

that is allowed

zarkam21:

but i don't understand the difference between choice b and d?

jhonyy9:

x < 6 -4 <= x

jhonyy9:

in case of C x can get the -4 value but 6 not can get in case of d x not can get -4 but can get 6

zarkam21:

right so from that explanation i would say that it is b?

jhonyy9:

yes bc. from this -4 <=x result that x can be equal or greater than -4 and from this x < 6 result x is smaller than 6 so not can get 6

zarkam21:

yes

zarkam21:

jhonyy9:

do you understand it now sure ?

zarkam21:

so from this ,, the answer to this would be D right?

zarkam21:

this is a new problem

zarkam21:

?

zarkam21:

Are you there

zarkam21:

@jhonyy9

jhonyy9:

how you get this 11 ?

zarkam21:

this is wrong i got it wrong

zarkam21:

but since you just explained it,, i would say it is choice D

jhonyy9:

0 is ok but how you get 11 ?

zarkam21:

no im saying its choice D

zarkam21:

[-4,6)

zarkam21:

am i right

zarkam21:

jhonyy9:

do you understand it why ?

zarkam21:

yes

zarkam21:

zarkam21:

is this right

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