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Math Help - Please help!

  1. #1
    Member princess_anna57's Avatar
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    Please help!

    Sketch y = x(4 - x) for x that is equal to or less than 0. Explain in words what happens to the slope of the curve as we move along it from left to right.
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  2. #2
    Behold, the power of SARDINES!
    TheEmptySet's Avatar
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    Make a table of values...

    Since we are making a graph we can pick any values of x that we wish...

    Since they ask us pick pick values less than or equal to zero that is a good place to start.


    so lets start with x = 0, x= -1, x = -2, x = -3

    y=x(4-x)

    evaluating at the above values

    y=0(4-0)=0 gives the point (0,0)

    y=-1(4-(-1)=0 gives the point (-1,-5)

    y=-2(4-(-2))=0 gives the point (-2,-12)

    y=-3(4-(-3))=0 gives the point (-3,-21)

    if we plot these ordered pairs and connect them with a smooth curve we should be able to answer the question.
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