What equation is proportional? Group of answer choices y= 50x + 2 y = 20x y = 10x + 200

Question

What equation is proportional?

Group of answer choices

y= 50x + 2

y = 20x

y = 10x + 200

y = 200x + 10

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Diễm Thu 4 years 2021-08-04T22:59:03+00:00 1 Answers 24 views 0

Answers ( )

  1. giabao
    0
    2021-08-04T23:00:23+00:00
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    Answer:

    The equation y = 20x is proportional ⇒ B

    Step-by-step explanation:

    • The proportional relationship is represented graphically by a line passes through the origin point
    • The equation of the proportional relationship is y = m x

    Let us solve the question

    Substitute x by 0 to find the value of y, if y = 0, then the line represents this equation passes through the origin point, then the equation shows a proportional relationship

    ∵ y = 50x + 2  

    ∵ x = 0  

    ∴ y = 50(0)  + 2

    ∴ y = 2

    → That means the line that represents the equation does not pass through

       the origin point

    ∴ The equation y = 50x + 2 is not proportional

    ∵ y = 20x  

    ∵ x = 0  

    ∴ y = 20(0)

    ∴ y = 0

    → That means the line that represents the equation passes through

       the origin point

    ∴ The equation y = 20x is proportional

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )