If y varies directly as x, and y is 400 when x is randy is r when x is 4, what is the numeric constant of variation in this relation?

Question

If y varies directly as x, and y is 400 when x is randy is r when x is 4, what is the numeric constant of variation in this relation?
10
40
100

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Natalia 1 week 2021-09-13T13:22:18+00:00 2 Answers 0

Answers ( )

    0
    2021-09-13T13:23:26+00:00

    The numeric constant of variation is 100

    Step-by-step explanation:

    Direct proportion means that increase in one variable cause increase in other variable

    Here,

    It is given that

    y varies directly as x

    y∝x

    when the proportionality symbol is removed a proportionality constant is introduced

    y = kx

    Given that

    y = 100 when x = 4

    Putting the values

    400 = k * 4\\k = \frac{400}{4}\\k = 100

    The numeric constant of variation is 100

    Keywords: Proportion variation

    Learn more about direct proportion at:

    • brainly.com/question/1234767
    • brainly.com/question/1232765

    #LearnwithBrainly

    0
    2021-09-13T13:23:35+00:00

    Answer:

    The answer is 10 on edge

    Step-by-step explanation:

    The one on top is wrong

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