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mskyeg
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What is the relative maximum and minimum of the function?
f(x)= x^3 + 2x^2 – 18x
 2 years ago
 2 years ago
mskyeg Group Title
What is the relative maximum and minimum of the function? f(x)= x^3 + 2x^2 – 18x
 2 years ago
 2 years ago

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mskyeg Group TitleBest ResponseYou've already chosen the best response.0
Possible answers: The relative maximum is at (3, 22), and the relative minimum is at (–2, –41). The relative maximum is at (–3, 41), and the relative minimum is at (2, –22). The relative maximum is at (3, 41), and the relative minimum is at (–2, –22). The relative maximum is at (–3, 22), and the relative minimum is at (2, –41).
 2 years ago

mskyeg Group TitleBest ResponseYou've already chosen the best response.0
I keep getting told what to do but i don't know how to do it
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.0
So take the derivative.
 2 years ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.2
do you know how to differentiate..?
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.0
Set it equal to zero.
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.0
I am assuming if he is doing this he can differentiate :O .
 2 years ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.2
you will need the 1st and 2nd derivatives 1st derivative = 0 gives the stationary points 2nd derivative is used to determine the nature of the stationary points
 2 years ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.2
it thats to difficult, just find a graphing package and graph the curve like geogebra http://www.geogebra.org/cms/
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.0
Or a graphing calculator will do nicely...
 2 years ago

mskyeg Group TitleBest ResponseYou've already chosen the best response.0
I don't know how to do that....
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.0
No calculus experience? Look like you have to use a calculator or a graphing program like @campbell_st said.
 2 years ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.2
ok... do you have a graphing package...?
 2 years ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.2
ok... here is an alternative/... can you factorise the polynomial..?
 2 years ago

mskyeg Group TitleBest ResponseYou've already chosen the best response.0
um can you just show me the steps or something....I have a textbook and the instructions aren't the issue its my ability to apply it to this problem
 2 years ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.2
ok... here is the easiest solution, use the table of values below,..... dw:1352186589941:dw substitute each x value into the graph... the largest positive y value will be the relative maximum and the largest negative y value will be the relative minimum. when you have done that, you'll find ordered pairs that match your choices...
 2 years ago

mskyeg Group TitleBest ResponseYou've already chosen the best response.0
Thanks so much:)
 2 years ago
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