Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Beautiful_Lier96

  • one year ago

1. Find f (g(7)) and g(f(7)) for the functions f (x) = x2 – 3x + 15 and g(x) = –x A. f (g(7)) = 85; g(f(7)) = –43 B. f (g(7)) = –13; g(f(7)) = –8 C. f (g(7)) = –55; g(f(7)) = –27 D. f (g(7)) = –43; g(f(7)) = –43 find the functions that result from f(g(x)) and g(f(x)). 2. f(x)=√2x-1, g(x)=5x+3 A. g(f(x))=√5x+4; f(g(x))=5(√2x-1)+3 B. F(G(X))=√5X+4; G(F(X))=5(√2X-1)+3 C. f(g(x))=√10x+5; g(f(x))=5√(2x-1)+3 D. f(g(x))=√10x-5; g(f(x))=5√(2x-1)-3 3. f(x)=-2x^2, g(x)=x+4 A. f(g(x))=-2x^2-16x-32; g(f(x))=-2x^2+4 B. g(f(x))=-2x^2-16x-32; f(g(x))=-2x^2+4 C. f(g(x))=2x^2+16x+32; g(f(x))=-2x^2+4 D. g(f(x))=2x^2+16x+32; f(g(x))=-2x^2+4

  • This Question is Closed
  1. ajprincess
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    to find f(g(x)) plug in g(x) in place of x in f(x). so can u find f(g(x)) for the first question @Beautiful_Lier96

  2. Beautiful_Lier96
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    im still lost -_-

  3. GeorgeLavergne
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yeah it's kind of confusing but you need to reread it to understand it a bit more

  4. ajprincess
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    f (x) = x2 – 3x + 15, g(x) = –x . to find f(g(x)) u have to plug in g(x) in stead of x in f(x). f(g(x))=(g(x))^2-3(g(x))+15 =(-x)^2-3(-x)+15 getting this? @Beautiful_Lier96

  5. Not the answer you are looking for?
    Search for more explanations.

    Search OpenStudy
    • Attachments:

Ask your own question

Ask a Question
Find 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
  • 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.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.