A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
For the function, find and simplify...will write equation below
anonymous
 one year ago
For the function, find and simplify...will write equation below

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(A) \[f(x+h)f(x)\] and (B)\[\frac{ f(h+h)f(x) }{ h }\] \[f(x)=9x^21\]

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3We know our function is: f(x)=9x^2−1 For part (a), it wants you to find f( x + h)  f(x), So firstly you need to work out what "f (x+h)" equals to... To do this, you just sub (or "plug") in "x+h" into your original f(x) function... so replace the x's with (x+h)

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3dw:1434345522113:dw

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.0isn't it this function for b which is also the definition of the derivative in calculus I? \[\frac{ f(x+h)f(x) }{ h }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I honestly have no clue how to do this so I'm not sure

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3are you confused on how to find f(x+h) ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So I only have one example and here's how it goes...\[F(x)=x^2+3x\] Step 1: \[(x+h)^2+3(x+h)\] Now with this example that I opened the question with...I dont know how to set it up like this example

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3In that example, your function is f(x) = x^2 + 3x They found f(x + h) by REPLACING the "x" in "f(x) = x^2 + 3x" with "x+h" That's why we get: f(x + h) = (x + h) ^2 + 3 (x + h)

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3dw:1434346176107:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So I think I'm confused because I don't know where the 9 should go because in the example I just showed you, x was 1

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.39 stays the same... Your entire function will remain exactly the same but you just replace the "x" with "x+h"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So it should be (9x+h)^21(x+h)

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3no.. we ONLY replace the X. ORIGINAL function f(x) = 9x^2 1 f(x+h) = 9(x+h)^2  1 we only replaced x with x+h We kept the 9 and the 1.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh ok. I think I can handle the rest now. I just didn't know how to set up my problem

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.3sureee, good luck !
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.