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10 February, 14:08

if f (x) = 2x - 3 find the following : f (7)

f (-2)

f (-4)

+3
Answers (1)
  1. 10 February, 14:18
    0
    (F (x) is also known as y)

    F (7) = 2 (7) - 3

    Y=14-3

    Y = 11

    F (-2) = 2 (-2) - 3

    Y=-4-3

    Y = - 7

    F (-4) = 2 (-4) - 3

    Y=-8-3

    Y = - 11
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