Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

RealityWillSlapYou

  • 2 years ago

Consider the functions f(x) = 3x(to the 2nd power) + 1 and g(x) = x + 3. What is the value of f[g(−1)]? A. 7 B. 37 C. 13 D. 12

  • This Question is Closed
  1. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i THINK you have to set it up like this: 3(x+3)^2+1

  2. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    and if its g(-1) then you plug in -1 for x

  3. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    which would get you 2 so it'd be 3(2)^2+1 which is 3(4)+1 12+1=13

  4. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yeah im pretty sure its c lol

  5. RealityWillSlapYou
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Thank you!! :D :D :D!

  6. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no problem (: i just had to think about it a little

  7. RealityWillSlapYou
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Consider the functions f(x) = 2(x − 3) and g(x) = 3x. What is the value of (f + g)(3)? A. 0 B. 9 C. −9 D. 2

  8. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    give me a sec i have to work this out

  9. RealityWillSlapYou
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Okays

  10. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ok first plug in 3 for the x values in f(x) = 2(x-3)

  11. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what do get?

  12. RealityWillSlapYou
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    B?

  13. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    lol you catch on quick and i didnt even have to explain the rest of it. GOOD JOB :D

  14. RealityWillSlapYou
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Thank you

  15. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no problem (:

  16. RealityWillSlapYou
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Select the equations that are parallel and perpendicular to y = −3x − 1 and that pass through the point (3, 1). A. parallel: y = −3x + 6 perpendicular: y = (1/3)x + 2(2/3) B. parallel: y = −3x + 10 perpendicular: y = (1/3)x C. parallel: y = -(1/3)x perpendicular: y = −3x D. parallel: y = (1/3)x + 1 perpendicular: y = 3x − 1

  17. SmokeysTheName
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i dont know that one you're going to have to ask in a new question.

  18. RealityWillSlapYou
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Okay!

  19. RealityWillSlapYou
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    What about this? Consider the functions f(x) = 2(x − 7) and g(x) = 2x. What is the value of (f − g)(4)? A. −6 B. 14 C. −14 D. −8

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

    • Attachments:

Ask your own question

Sign Up
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.