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Mathematics 6 Online
OpenStudy (sammietaygreen):

attachment below.

OpenStudy (anonymous):

y=3x

jimthompson5910 (jim_thompson5910):

You have 3 choices that all start with yes, so the first part of the answer must be 'yes'

jimthompson5910 (jim_thompson5910):

now you just need to see which equation goes through all of the points given in the table

jimthompson5910 (jim_thompson5910):

is it y = 2x? let's check y = 2x y = 2(3) ... plug in x = 3 y = 6 so that works y = 2x y = 2(6) ... plug in x = 6 y = 12 but that doesn't, the result *should* be 18 so y = 2x can be eliminated as an answer

OpenStudy (sammietaygreen):

oh i forgot a choice, one of them was no; y does not vary directly

jimthompson5910 (jim_thompson5910):

oh, then you need to see if any equation goes through all of the given points

jimthompson5910 (jim_thompson5910):

if no linear equation does, then the answer is "no"

OpenStudy (sammietaygreen):

it's either b or the last choice; I'm not sure.

jimthompson5910 (jim_thompson5910):

idk which one b is because of that missing one

OpenStudy (sammietaygreen):

yes; y = 3x

jimthompson5910 (jim_thompson5910):

well, if x = 3, then y = 3x y = 3*3 y = 9 but we want it to be y = 6 since the first row is 3 then 6

OpenStudy (sammietaygreen):

so if we put it in for each, none of them would correct so it's no?

jimthompson5910 (jim_thompson5910):

that's correct, some work, but not all

jimthompson5910 (jim_thompson5910):

so the choices of linear equations do not work

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