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Mathematics 16 Online
OpenStudy (anonymous):

WILL GIVE MEDAL IF YOU HELP!!!

OpenStudy (anonymous):

whatcha need

OpenStudy (anonymous):

Identify which table shows a direct variation. A. both tables B. Table 1 only C. Table 2 only D. neither table

OpenStudy (welshfella):

for a direct variation y = kx where k is a constant making k = y/x for table 1 divide the values of y by the values of x to see if you get a constant value

OpenStudy (welshfella):

if they are constant then you have direct variation

OpenStudy (welshfella):

repeat for table 2

OpenStudy (anonymous):

I dont get it :/

OpenStudy (welshfella):

Table 1:- 7.5 / 3 = ? 11.25/4.5 = ? 17.5 / 7 = ? do these calculations /

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

they all equal 2.5

OpenStudy (welshfella):

right so k = 2.5 and y = 2.5x this is direct variation

OpenStudy (welshfella):

now do the same for table 2

OpenStudy (anonymous):

so it would be A?

OpenStudy (anonymous):

oh ok

OpenStudy (welshfella):

3 / 1.5 = 12/8 =

OpenStudy (welshfella):

no you need to check table 2 table 1 is direct variation

OpenStudy (anonymous):

Table 2 is not 2 equal 1.5 and the other one equals 6

OpenStudy (anonymous):

so it would be B

OpenStudy (welshfella):

right so Table 2 does not shgow direcxt variation

OpenStudy (welshfella):

yes B

OpenStudy (anonymous):

thx you can you help with more

OpenStudy (welshfella):

sorry gotta go right now

OpenStudy (anonymous):

ok thx for your help

OpenStudy (welshfella):

I have to take my grandson to college

OpenStudy (welshfella):

yw

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