Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
mathcalculus
Group Title
Help: Find the slope of the tangent line to the curve
(attached below)
 one year ago
 one year ago
mathcalculus Group Title
Help: Find the slope of the tangent line to the curve (attached below)
 one year ago
 one year ago

This Question is Closed

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
I'm a little confused, where do i know to put d/dx and when to directly do the derivative..
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
use implicit differentiation to find dy/dx and exaluate at the given point.
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i did, but thats where im confused... it's like i can take the derivative of 3x^2 but then should i put d/dx next to it... or just simply leave it 6x
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
im getting mixed up.
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
then also 3xy... derivative or not... i know i have to put d/dx
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
if it's a function of x then take the derivative of the function and multiply by its differential, dx. Same with y. example. for x^2 you'd get 2x*dx, for y^2 you'd get 2y*dy
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
for xy, use the product rule. y*dx + x*dy
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
right, okay. let me try again
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
so first it would be 6x*d/dx right?
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
no... just 6x*dx
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
and what about the 3 do i leave it out? and use product rule with xy?
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
ok....
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
3 is a constant so it oges along for the ride. also, d/dx is an operator. it says to take the derivative of whatever follows wrt x.
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
with respect to x..
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i dont know ive been using d/dx whenever i see an x and dy/dx for a y
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
dx is the differential of x... the change in x, if you will
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
you could do dx/dx everytime you take a derivative of a function of x and dy/dx for a function of y... that's okay. but dx/dx is just 1.
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
ok yes:) now we're on the same pg
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
for the middle part, is it, 3x*dx/dx+y*dy/dy?
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
3y*dx/dx+3x*dy/dx
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
= 3y + 3x*dy/dx
 one year ago

pgpilot326 Group TitleBest ResponseYou've already chosen the best response.0
i 've got to go... so you can at least check... you should get 3 as the final answer. Good luck!
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
thank you, i appreciate it.
 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.