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28 September, 09:26

Rewrite y + 3 = 0 using function notation.

A) f (x) = 3

B) f (x) = - 3

C) f (x) + 3 = 0

D) f (x) = y + 3

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Answers (1)
  1. 28 September, 10:53
    0
    First rewrite as y = ..., just move the + 3 to the other side (sign flips):

    y = - 3.

    Then replace y by f (x):

    f (x) = - 3.

    This is a straight line at y=-3.

    Answer B.
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