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24 August, 02:40

Find f (3). f (x) = x2 + 5x - 9 The equation y = 2x + 1 is changed to y = 2x - 1.

How does this change the graph of the line?

A) The original line will shift down 1 unit.

Eliminate

B) The original line will shift left 1 unit.

C) The original line will shift left 2 units.

D) The original line will shift down 2 units.

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Answers (1)
  1. 24 August, 02:57
    0
    f (x) = 15

    D

    Step-by-step explanation:

    f (x) = x2+5x-9

    f (3) means to substitute 3 for x in the equation.

    3^2+5 (3) - 9

    9+15-9

    f (x) = 15

    y=mx+b

    b is the y intercept, so changing it to - 1 would shift the line down 2 units. you
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