?? how did the markscheme get the last answer? | Revision Server | Page 1

onyx forum Dec 4, 2022, 10:50 PM

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how did it go from
k<2k+6<4k+18
to
K>6

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i understandd the first part of the mark scheme

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but the second to last step to the answer is confusing

ripe timber Dec 4, 2022, 11:08 PM

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umm one sec

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-k>6

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k<-6

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cause k-2k

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=-k

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and if you did 2k-4k

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and 18-6

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-2k>12

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so again you end up with k<-6

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so there’s two ways as well

onyx forum Dec 5, 2022, 4:48 PM

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ohh i get ouu

#?? how did the markscheme get the last answer?