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12 December, 01:50

The slope of a linear function h (x) is 2. Suppose the function is translated 8 units up to get d (x). How can h (x) be translated to the left or right to represent the same function d (x) ? Explain your answer.

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  1. 12 December, 03:32
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    Left 4 units

    Step-by-step explanation:

    h (x) is a line with slope 2. Let's say it has y-intercept b. So:

    h (x) = 2x + b

    d (x) is h (x) shifted up 8 units. So:

    d (x) = h (x) + 8

    d (x) = 2x + b + 8

    We want to shift h (x) left or right to get d (x). If we say that shift is a units to the right, then:

    h (x-a) = d (x)

    2 (x-a) + b = 2x + b + 8

    2x - 2a + b = 2x + b + 8

    -2a = 8

    a = - 4

    a is negative, so the shift is to the left.

    h (x) should be shifted to the left 4 units.
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