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Mathematics 7 Online
OpenStudy (song_of_the_sole):

what is the relative maximum and minimum of the function? f(x)=2x^3+x^2-11x

OpenStudy (song_of_the_sole):

a)the relative maximum is at (-1.53,8.3) and the relative minimum is at (1.2,-12.01) b) the relative maximum is at (-1.53,12.01) and the relative minimum is (1.2,-8.3) c) the relative maximum is at (-1.2,8.3) and the relative minimum is at (1.53,-12.01) d) the relative maximum is at (-1.2,12.01) and the relative minimum is at (1.53,-8.3)

OpenStudy (3mar):

May I help?

OpenStudy (song_of_the_sole):

please

OpenStudy (3mar):

Thank you. That is with my pleasure! Are you familiar with Maxima and Minima of a function?

OpenStudy (song_of_the_sole):

not really

OpenStudy (3mar):

So I think this would help you. https://www.mathsisfun.com/calculus/maxima-minima.html Check it and tell me what you got!

OpenStudy (song_of_the_sole):

can u walk me through it

OpenStudy (3mar):

Of course. That is with my pleasure! Hint: try to plot or graph the function to make it easier what you are dealing with!

OpenStudy (song_of_the_sole):

how do i do this

OpenStudy (3mar):

Can you derive that function?

OpenStudy (song_of_the_sole):

not sure how to do that

OpenStudy (3mar):

\[\Large f(x)=2x^3+x^2-11x\] Is that your function?

OpenStudy (song_of_the_sole):

yes

OpenStudy (3mar):

Great! Its first derivative will be like that: \[\Large f'(x)=6x^2+2x-11\] Try these, please. Let me know when you got something! https://www.mathsisfun.com/calculus/derivatives-introduction.html https://www.mathsisfun.com/calculus/derivatives-rules.html

OpenStudy (song_of_the_sole):

i cant open it im on my phone

OpenStudy (3mar):

so need it as a pic?

OpenStudy (song_of_the_sole):

just type

OpenStudy (3mar):

familiar with that? |dw:1479450022244:dw|

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