A community for students.
Here's the question you clicked on:
 0 viewing
yasmin95
 2 years ago
find the equation of the tangent to the parabola x^2=16y at the point (4,1)
yasmin95
 2 years ago
find the equation of the tangent to the parabola x^2=16y at the point (4,1)

This Question is Closed

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1Differentiate both sides with respect to x, what do you get?

yasmin95
 2 years ago
Best ResponseYou've already chosen the best response.0i got this so far, y=x^2/16 dy/dx=2x/16 = x/8 at (4,1) dy/dx =4/8 =1/2

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1Yup! So, slope of tangent = m = 1/2 Equation of tangent required is y y1 = m (x x1) (x1, y1) = (4,1) Can you do it now?

yasmin95
 2 years ago
Best ResponseYou've already chosen the best response.0yeah but i don't know hw i keep getting x2y+4

yasmin95
 2 years ago
Best ResponseYou've already chosen the best response.0the answer is x2y2=0

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1y 1 = (1/2) (x 4) Multiply both sides by 2 2 (y1) = x4 Can you continue??
Ask your own question
Sign UpFind more explanations on OpenStudy
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.