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How to know that in direct and indirect variations when do we have to put cost up and article down when doing cross multiplication?I will mark as brainliest to the one who hives me the correct answer:)

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Answer:

Direct VARIATION: Because k is positive, y increases as x increases. So as x increases by 1, y increases by 1.5.

Inverse Variation: Because k is positive, y decreases as x increases.

When two quantities x and yare in direct proportion (or vary DIRECTLY), they are WRITTEN as x ∝ y. Symbol “∝” STANDS for 'is proportional to'. When two quantities x and y are in inverse proportion (or vary inversely) they are written as x ∝ 1 y

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