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anonymous
 one year ago
Find the derivative of f(x) = 12x2 + 9x at x = 6.
112.5
135
90
108
@ganeshie8 @hero @dan815 @perl @pooja195 @nincompoop @CGGURUMANJUNATH @zepedrix @usukidoll
anonymous
 one year ago
Find the derivative of f(x) = 12x2 + 9x at x = 6. 112.5 135 90 108 @ganeshie8 @hero @dan815 @perl @pooja195 @nincompoop @CGGURUMANJUNATH @zepedrix @usukidoll

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how do i do that? can u show me step by step? @nincompoop

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3you can get the general derivative first and then apply at x=6 or you can apply it from the beginning

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0\[f(x) = 12x^2+9x \]

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3alright, guy what have you learned so far?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3have you learned derivative by limit definition yet?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no or maybe i did but i dont remember. can one of u show me step by step @UsukiDoll @nincompoop

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3okay do you know what a derivative is first?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3do you know what a slope is?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0once i have f(x)=12x^2+9(x) what would i do?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3I can give you the general formula for powerrule, but it won't help you much in the long run if you have no clue what derivatives are.

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3so do you know what is slope?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3I am asking a series of questions to see where is the proper place to begin.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no i dont @nincompoop

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2\[\frac{ d }{ dx } x^n = nx^{n1}\] power rule

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0wow nin... don't be rude _

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3I'd use \(a \) instead of the coefficient n

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3whatever floats floats

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@UsukiDoll can u please help me

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3alright, I think we've got a problem here I am dumbfounded why you're doing derivative when you do not know what slopes are.

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3in any case, we can go ahead and start with slope in general

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3begin by our daytoday language, slope pertains to the steepness of something think of a slide or a hill or anything that goes down or up, it will have a slope

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3now we can try to infuse a some math into the language

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2Well I don't think you have to go that far nin, I'm sure OP knows what slope is and just needs to remember dw:1436327588479:dw one image will do wonders

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3I was just about to draw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay i already know this?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3are you asking us or telling us?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3alright great! now we can move on to derivatives! laughing out loud

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2But for your question, you find the derivative then plug in the value of x they've given you

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0sorry I'm with another user right now.

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3basically derivative pertains the slope at a particular instant

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3dw:1436327777742:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3a good example of the instant that I am referring to is where one of the lines intersects at one point with the circle

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.2Jessica were you taught definition\[f'(x) = \lim_{h \rightarrow 0} \frac{ f(x+h)f(x) }{ h }\] of derivative, I think that's what you have to use

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3now before we proceed, we must be able to identify and know about continuous functions

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3think of this portion as an algebra recap will you be able to tell us if the equation you're given is continuous or not?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3if you're unsure, now is the time to learn them http://tutorial.math.lamar.edu/Classes/CalcI/CalcI.aspx

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3review on tangents with pretty awesome illustration http://tutorial.math.lamar.edu/Classes/CalcI/Tangents_Rates.aspx

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.3let us know when you've digested the concept of tangents and derivatives because the next part will be testing your algebra skills with derivatives using limitdefinition.
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