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math-calc

posted by on .

for x (-12, 10) the function f is defined:
f(x)=x^7(x+2)^2

On which two intervals is the function increasing (enter intervals in ascending order)?

Find the region in which the function is positive
Where does the function achieve its minimum?

  • math-calc - ,

    it's turning points are when
    [1] x*7 = 0 or x = 0
    [2] (x+2)^2 = 0 or x - -2

    The graph is increasing when
    (-12 to -2) and (0 to 10)

    To work this out find the turning points by finding f'[x]=0

    ok hope that helps

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