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21 November, 12:04

Consider the function represented by 9x+3y = 12 with x as the independent variable. How can this function be written using

function notation?

f (y) = - 1/3y+4/3

f (x) = - 3x+4

f (x) = - 1/3x + 4/3

f (y) = - 3y+4

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Answers (1)
  1. 21 November, 12:25
    0
    You only have to write the expression for y and change y by f (x). This is:

    9x + 3y = 12

    3y = - 9x + 12

    y = - 3x + 4

    f (x) = - 3x+4

    Then, the answer is B
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