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2 January, 00:05

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

function notation?

FO==

+

f (x) = - 3x+4

F () =

x+

f (V) = - 3y+4

+5
Answers (1)
  1. 2 January, 03:38
    0
    f (x) = - 3x + 4

    Step-by-step explanation:

    Note that y = f (x)

    Given

    9x + 3y = 12 ← rearrange making y the subject

    Subtract 9x from both sides

    3y = - 9x + 12 (divide all terms by 3)

    y = - 3x + 4, that is

    f (x) = - 3x + 4
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