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2 April, 09:00

Find the difference quotient of f; that is, find StartFraction f left parenthesis x plus h right parenthesis minus f left parenthesis x right parenthesis Over h EndFraction comma h not equals 0 comma for the following function. f left parenthesis x right parenthesis equals negative 4 x plus 6

+4
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  1. 2 April, 10:29
    0
    -4

    Step-by-step explanation:

    Given the following function:

    f (x) = - 4x + 6

    We have to find the difference quotient of f (x); that is,

    [f (x + h) - f (x) ]/h

    So, we ned to compute f (x + h) as follows:

    f (x+h) = - 4 (x+h) + 6 = - 4x - 4h + 6

    Replacing into the difference quotient, we get:

    [f (x + h) - f (x) ]/h = [-4x - 4h + 6 - (-4x + 6) ]/h

    [f (x + h) - f (x) ]/h = [-4x - 4h + 6 + 4x - 6) ]/h

    [f (x + h) - f (x) ]/h = [ - 4h) ]/h

    [f (x + h) - f (x) ]/h = - 4
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