Which is an equation of a direct proportion? CLEAR CHECK y=8x y=12x+4 y=12x y=4x−4

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Which is an equation of a direct proportion? CLEAR CHECK y=8x y=12x+4 y=12x y=4x−4

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Sapo 1 year 2021-08-31T01:44:35+00:00 1 Answers 17 views 0

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  1. kiet
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    2021-08-31T01:46:20+00:00
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    Answer:

    [tex]y=8x, \\y=12x[/tex]

    Step-by-step explanation:

    Proportional functions can be written as [tex]y=kx[/tex], where [tex]k[/tex] is some constant of proportional. Since directly proportional functions always pass through the origin, the y-intercept must be 0 (no additional number before or after [tex]x[/tex] term). The only answers that fit this format are:

    [tex]\rightarrow \boxed{y=8x}\\\rightarrow \boxed{y=12x}[/tex]

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