Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
How do you change the bounds/limits on the integrand for a parametric equation? I understand the integralbased area formula for Cartesian equations fine, but I'm a bit lost here and could definitely use some clarification help. :)
 one year ago
 one year ago
How do you change the bounds/limits on the integrand for a parametric equation? I understand the integralbased area formula for Cartesian equations fine, but I'm a bit lost here and could definitely use some clarification help. :)
 one year ago
 one year ago

This Question is Closed

agentx5Best ResponseYou've already chosen the best response.0
Cartesian mode: \[Area = \huge \int\limits_{a}^{b} f(x) dx\] Parametric mode? \[Area =\huge \int\limits_{\alpha}^{\beta} g(t) \cdot f'(t) \ dt\] The heck is this?
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
\[\huge slope = \frac{(\frac{dy}{dt})}{(\frac{dx}{dt})}\]
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
What I'm not understanding is where my substitution is coming from. Maybe a simple example is in order, let me go find one...
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
Example from the homework, verbatim: Find an equation of the tangent to the curve at the given point by both eliminating the parameter and without eliminating the parameter. x = 6 + lnt, y = t^2 + 6, (6, 7)
 one year ago

malevolence19Best ResponseYou've already chosen the best response.0
By (6,7) do you mean from 6 to 7?
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
Ah nope @malevolence19, it's the point there
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
I presume it means the graph contains that point, or the tangent line & the graph both do more specifically.
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
And one of the easier looking questions... Hmpf! I dislike lesson plans that give you supereasy examples in the lecture notes but then kick your brain around like a can when you get to the homework :P
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
It's like, oh hey you got any questions on this? No? Oh ok let's try something twenty times harder, ok jump! :D
 one year ago

malevolence19Best ResponseYou've already chosen the best response.0
Do you know how to do with "eliminating the parameter"?
 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.