Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

timo86m Group TitleBest ResponseYou've already chosen the best response.2
take derivitive first :D
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
okay tell me when your back
 one year ago

goformit100 Group TitleBest ResponseYou've already chosen the best response.0
First of all for solving this question do you know the conception of : Derivatives. and i know you can then definitely can solve the question on your own
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
take dervitive first of all : can you do that?
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
I dont remember reading anything about derivatives in the text book
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
how about differentials?
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
A little. I remember seeing it. Didnt go into much detail
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
you weren't paying much attention lol :P
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
Can you tell me. or send me a link about them. either one is fine. :)
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
anyhoo first we must take the derivative aka differential. x^2+5*x luckily this one is one of the most basic and using the rules aka formulas. http://myhandbook.info/form_diff.html look at constant rule, sum rule and power rule :D try it out if you can
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
also the factor rule :)
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
which factor rul
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
what do i plug in for d?
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
and d/dx just means the derivative operator so d/dx(x^2+5*x) means derivitve of x^2+5*x with respect to x d/dx(x^2)+ d/dx(5*x) the sum rule this makes it more easy :) seperated into 2 small derivatives instead of one big one. we handle it as 2 seperate problems d/dx(x^2)= 2x by the power rule simply decrease the exponent by 1 and multiply the variable and coefficient by the exponent you just decrased. you get 2 :). d/dx(5*x) = 5 by factor rule now you plug back in because you did them seperately 2x+5 and that is derivative :) with me so far?
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
2x+5 is also a tangent function which gives the slope of the tangent at any given x. For example at x=0 the slope is 5. they want it at 4 tho. So plug it in 2(4)+5=8+5=13 That is your answer :)
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
But i saw where I messed up!
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
its fixed
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
was i right tho :)
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
Thank you so much!
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
weird tho if you not familiar with calc 1 concepts then it is weird problem to do.
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
Im not in Calc 1 lol
 one year ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.0
hmm maybe if we do: x1 = 3 x2 = 5 y1 = 9+15 = 24 y2 = 25+25 = 50 M = (y2y1)/(x2x1) = (5024)/(53) = 26/2=13
 one year ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.0
Voila, the answer given to us by calculus matches up: f'(4) = 2x+5 = 2*4+5=13
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
aaa :) calc way is easier tho.
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
Thank you both!
 one year ago

Skittles456 Group TitleBest ResponseYou've already chosen the best response.1
Im going through all the qustions I missed so i can understand them better
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.2
good for you :D
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.