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Mathematics 55 Online
OpenStudy (thehollywoodstud):

Help Please, will fan and medal

OpenStudy (thehollywoodstud):

OpenStudy (tgstudios):

do you know what domain or range is?

OpenStudy (thehollywoodstud):

X AND Y ?

OpenStudy (thehollywoodstud):

x is domain y is range

OpenStudy (tgstudios):

so to make a domain, you would take all the x-values of a sequence of numbers, from least to greatest, and put them together (remember: always least to greatest). :D

OpenStudy (thehollywoodstud):

Looking at this, #1 Is A, and #2 is B correct?

OpenStudy (tgstudios):

yup :D

OpenStudy (thehollywoodstud):

got it! can you help with more?

OpenStudy (thehollywoodstud):

what about the next one? if the points are a relation or not?

OpenStudy (tgstudios):

a function means all the x or y values are not the same. If 2 of the x-values are the same, then it is not a function. if 2 of the y-values are the same, then it is not a function. in finding function or not, x-values and y-values are separate. :)

OpenStudy (tgstudios):

actually, function only deals with x-values so forget about y-values when finding function or not.

OpenStudy (thehollywoodstud):

so this one is a function?

OpenStudy (tgstudios):

no, because 2 of the x-values are the same

OpenStudy (thehollywoodstud):

sorry, no its not since the two pairs of 9

OpenStudy (tgstudios):

yes you are correct! :D

OpenStudy (thehollywoodstud):

yay im sorta getting this, can you help with the next one?

OpenStudy (thehollywoodstud):

the what is F one

OpenStudy (tgstudios):

yes, on the next one, sense it is f(-4), you would input -4 in all the spots where "x" is...

OpenStudy (thehollywoodstud):

f(-4)=7x+3?

OpenStudy (tgstudios):

so 7x would be 7(-4)

OpenStudy (thehollywoodstud):

oh which makes that 28

OpenStudy (tgstudios):

-28

OpenStudy (thehollywoodstud):

what about the absolute value tho?

OpenStudy (tgstudios):

so taking that, -28 - 3 is ??

OpenStudy (thehollywoodstud):

-31

OpenStudy (tgstudios):

absolute value doesnt matter when talking about negatives

OpenStudy (thehollywoodstud):

ahhh yeah your right.

OpenStudy (tgstudios):

gg good luck :D anything else?

OpenStudy (thehollywoodstud):

yes lol its a practice assignment so its kinda all making sense as you help me

OpenStudy (thehollywoodstud):

OpenStudy (tgstudios):

well the first one is easy... what is the only equation with positive 1/4 and positive 14? XD

OpenStudy (thehollywoodstud):

d? :)

OpenStudy (tgstudios):

lol yup XD

OpenStudy (thehollywoodstud):

so is the next one negative?

OpenStudy (thehollywoodstud):

sorry, B?

OpenStudy (tgstudios):

no no... the next one is the same problem only putting it in a different form.

OpenStudy (thehollywoodstud):

before we solve it right? like the starting of the equation

OpenStudy (tgstudios):

standard form is Ax + By = C

OpenStudy (tgstudios):

I'm actually not sure what the answer is for this one but I know its not A. So theres ur clue I don't know what else.

OpenStudy (thehollywoodstud):

well we can rule out a and d

OpenStudy (thehollywoodstud):

im gonna go with that its c ?

OpenStudy (tgstudios):

not sure if you want to rule out D yet though but yes I would go with B, ur first answer.

OpenStudy (thehollywoodstud):

can you help with some more lol?

OpenStudy (tgstudios):

hmmmm... how many more?

OpenStudy (tgstudios):

if so post them in a new question

OpenStudy (thehollywoodstud):

ok will do

OpenStudy (tgstudios):

:D

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