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23 November, 12:50

Let f (x) = |x| for all real numbers x. Write the formula for the function represented by the described

transformation of the graph of y = f (x).

c. First, a reflection across the xx-axis is performed, then a translation left 4 units, then a translation up 5 units,

and finally a vertical stretch with scale factor 3

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Answers (1)
  1. 23 November, 16:00
    0
    f (x) = 3 * (-|x+4|+5)

    Step-by-step explanation:

    Given the function f (x) = |x|

    1. Transform the graph in a reflection across the x-axis:

    You can transform the graph multiplying it by - 1, so you have:

    f (x) = - |x|

    2. Translate the graph 4 units to the left:

    You can translate the graph adding the number inside the absolute value, so:

    f (x) = - |x+4|

    3. Translate the graph up 5 units:

    You can translate the graph up adding the number of units, but outside the absolute value, then:

    f (x) = - |x+4|+5

    4. Finally to transform the graph with a vertical stretch with a scale factor 3:

    You should multiply the function by 3

    f (x) = 3 * (-|x+4|+5)
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