Question

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:)

Answer 1

Hi friend,

here is your answer

please follow me

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

hope it helps you and you understood

if helps please follow me