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Mathematics 14 Online
OpenStudy (anonymous):

HELP HEPL NOW NOW NOW NOW NOW

OpenStudy (anonymous):

OpenStudy (anonymous):

NVM I GOT EM

OpenStudy (anonymous):

IS IT D THEN C ?

terenzreignz (terenzreignz):

Nope.

OpenStudy (anonymous):

r u sure ?

OpenStudy (anonymous):

how

terenzreignz (terenzreignz):

If by D then C, you mean your answer to the first question is the fourth choice, and your answer to the second question is the third choice, then, no.

terenzreignz (terenzreignz):

If you just read the first question thoroughly and have a quick browse over the choices, you shouldn't even have to think about it ^_^ (HINT: Standard form...)

terenzreignz (terenzreignz):

Although it helps to know how to convert... \[\Large y - 3 = \frac12(x+6)\] First distribute the 1/2.

OpenStudy (anonymous):

oh yeah then it has to be C

terenzreignz (terenzreignz):

Can you show your work?

OpenStudy (anonymous):

how @terenzreignz

terenzreignz (terenzreignz):

Distribute the 1/2 factor first... \[\Large y - 3 = \color{red}{\frac12}(x+6)\]

OpenStudy (anonymous):

so 1/2 x and 3

OpenStudy (anonymous):

and then +3 on both sides so y=1/2x+6

terenzreignz (terenzreignz):

I see... while what you did is not wrong, the question doesn't call for it... The question wants the answer in standard form, or \[\Large Ax + By = C\]

terenzreignz (terenzreignz):

So try to rearrange it in that form instead...

OpenStudy (anonymous):

whats C ?

terenzreignz (terenzreignz):

a constant... a number with no variable attached to it... You got it up to this point, right? \[\Large y - 3 =\frac12x + 3 \]

OpenStudy (anonymous):

yeah

OpenStudy (anonymous):

so 3

terenzreignz (terenzreignz):

Instead of +3 both sides, why don't you -y both sides?

OpenStudy (anonymous):

so -3=1/2+3-y

terenzreignz (terenzreignz):

Yup... almost there, just two more steps... we want to get rid of that +3 on the right-side... any ideas?

OpenStudy (anonymous):

-3 on both

terenzreignz (terenzreignz):

mhmm so you get?

OpenStudy (anonymous):

-6=1/2-y

terenzreignz (terenzreignz):

\[\Large \frac12x - y = -6\] but that 1/2 is so ugly, why don't you multiply both sides by 2 to get rid of it? :)

OpenStudy (anonymous):

-12=-y

terenzreignz (terenzreignz):

No...

OpenStudy (anonymous):

-12=x-y

terenzreignz (terenzreignz):

you missed a spot...

terenzreignz (terenzreignz):

you forgot to multiply the 2 with the -y

OpenStudy (anonymous):

what?

terenzreignz (terenzreignz):

\[\Large -6 = \frac12x -y\] \[\Large \color{red}2(-6)= \color{red}2\left(\frac12x - y\right)\] redo it...

OpenStudy (anonymous):

-12=x-2y

terenzreignz (terenzreignz):

And that's actually one of the answer-choices.

OpenStudy (anonymous):

can you help me with more ?

terenzreignz (terenzreignz):

Love to, but I have to go to school now ^_^ Sorry, I'm sure there are others who can help ... just give them a holler Signing off -----------------------------------------

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