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Mathematics 7 Online
OpenStudy (lifeisadangerousgame):

I need someone to help me through my test.

OpenStudy (amistre64):

test is always a tricky word ... and how would you define "help"?

OpenStudy (anonymous):

Lifeisindeedpretty dangerouss.

OpenStudy (lifeisadangerousgame):

Like, help as in check the ones I have already done

OpenStudy (lifeisadangerousgame):

and let me know if something is wrong

OpenStudy (anonymous):

Wokay.

OpenStudy (amistre64):

i could help you focus .. maybe :) whats the qs

OpenStudy (lifeisadangerousgame):

I copied the whole page since it'd be easier, but

OpenStudy (lifeisadangerousgame):

Thanks

OpenStudy (amistre64):

it might be more proper to list the sets in order from low to high .... dunno how vital that is in your answers tho

OpenStudy (lifeisadangerousgame):

What do you mean? In which question?

OpenStudy (lifeisadangerousgame):

Ohh, I see

sam (.sam.):

Q5 got 1 mistake

OpenStudy (amistre64):

#5 is iffy yes

OpenStudy (amistre64):

#6 is fine by me, but maybe lose the |..| signs

OpenStudy (lifeisadangerousgame):

MMk

OpenStudy (amistre64):

adding subtracting fraction in #5 needs looked at and redone ;)

sam (.sam.):

#5, 2/9 - 1/3 =-1/9

OpenStudy (lifeisadangerousgame):

Ohh

OpenStudy (amistre64):

#7 needs more work :)

OpenStudy (lifeisadangerousgame):

Oh yea, the ones that have no answers, I'm still trying to figure out :P

sam (.sam.):

y-intercept at 2

OpenStudy (amistre64):

3 = 5; k=3/5 x = 15(3/5) = 9 ... so thats fine for #8

sam (.sam.):

@amistre64 should i give the graph to him? #7

OpenStudy (amistre64):

if you post the graph, I would at least offer your thoughts to justify its positions :)

OpenStudy (amistre64):

#9 can you copy paste the text so that I dont have to flip back and forth; i tend to get things mixed up when I do that

sam (.sam.):

OpenStudy (lifeisadangerousgame):

Oh I'm still working on the graph one

sam (.sam.):

As i said, y-intercept at 2

OpenStudy (amistre64):

:) sams got your back for this then

OpenStudy (lifeisadangerousgame):

And I don't have #9 either, I'm still working on it :/

OpenStudy (amistre64):

#9 is just a s = k s^2 type thing with constants of variation or something like one of them above it

sam (.sam.):

\[y \le2\]

OpenStudy (lifeisadangerousgame):

Ohh

OpenStudy (lifeisadangerousgame):

Well, I think I have the first part for #9: ks^2, so would it be k(40.96^2)?

OpenStudy (amistre64):

s = k A is prolly more suitable so that you dont throw in the spurions ^2 part

OpenStudy (amistre64):

even that im iffy about tho

OpenStudy (amistre64):

if we do it this way: \[6.4\ k=40.96;\ k=6.4\] but \[7.96(6.4)\ne (7.96)^2 \]

OpenStudy (amistre64):

im wondering if square means an actual square or if im just not reading this right

OpenStudy (lifeisadangerousgame):

I think it does

sam (.sam.):

#11, y=(x-a)^2 +b Vertical Translation "b" , when "b" is a constant , if "b" is positive, the graph will shift upwards, if "b" is negative, the graph will shift downwards. Horizontal translation, when (x-a), the graph shifts to the right, when (x+a), the graph shifts to the left

OpenStudy (lifeisadangerousgame):

You wanted me to post the question in here so you didn't have to switch right Amistre?

OpenStudy (amistre64):

yeah, but i think i worked out the main issues; except for what its asking for of course :)

OpenStudy (lifeisadangerousgame):

Mmk, what did yo mean by s = k A?

OpenStudy (amistre64):

side varies with area

OpenStudy (amistre64):

k is the constant of variation

OpenStudy (lifeisadangerousgame):

So, this question is sorta like this one:

OpenStudy (amistre64):

yes

OpenStudy (lifeisadangerousgame):

Ohh ok! I should be able to solve it then :D

sam (.sam.):

y varies directly is y=kx y varies inversely is y=k/x

OpenStudy (amistre64):

good, cause im coming up blank on it; prolly reading too much into it :)

OpenStudy (lifeisadangerousgame):

Thanks for your help guys!

OpenStudy (amistre64):

yw, good luck :)

OpenStudy (lifeisadangerousgame):

Thanks :)

sam (.sam.):

no problem :)

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