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OpenStudy (anonymous):
How do I do a sign diagram for f(x)^1 = 4x(x-3)^2...will give medal
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OpenStudy (anonymous):
I understand I have to find the critical numbers to do the sign diagram...But I can not remember how to that for this problem. Please help.
OpenStudy (amistre64):
the critical values define intervals to test out. pick a value within each interval (something simple is fine) and see if its positive or negative. The sign for that test will determine the sign for the interval
OpenStudy (amistre64):
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