A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Sparklestaraa

  • one year ago

Help in Algebra 1 question Screenshot below!

  • This Question is Closed
  1. sparklestaraa
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    :))) Part B and C are my struggles

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

    Does that have an affect on the overall answer for part A because I figured that I just didn't find it relevant to state.

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

    @inowalst plz help!

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

    ok, it looks like your answer for A is mostly correct. Your domain for this function would be [0, 6] because those are the relevant x values. It looks like you used y-values for each part. The function is increasing on (0, 3) and decreasing on (3,6).

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

    Omg thank you soo much :D

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

    C would be which tho cuz its rate of change isn't that time and speed or something?

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

    ^^That was a correction for A. For b, it's asking for the domain (x-values) if the minimum of the function was $60. You want to look find the two points on the graph where y = 60, and use them to be the domain for B.

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

    would it be then (60,1) AND (60,5) ?

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

    x comes first, so (1, 60) and (5, 60). Which means the domain would be [1, 5]

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

    For C, any function can have a rate of change. It just has different meanings for different applications. For this function rate of change is amount of profit gained or lost for each increases in price

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

    Ok and also another question regarding A you wrote (0, 3) wouldn't that be (0,30) because the 3 isn't shown?

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

    It's kind of hard to keep track of when you're starting out. Domains/ranges are represented by intervals, which uses the same notation as points. (0, 3) in part A is an interval, meaning the function is increasing from x = 0 to x = 3. It's not the point (0, 3).

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

    does that make sense?

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

    ohhh :D

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

    yes it does make sense when its not meaning a point :P

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

    ok. for part C do you need help finding the rate of change?

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

    Yes i do cuz honestly I dont understand rate of change what so ever i figured its just the number but its a lot more confusing than it seems for me lol if that makes sense

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

    let me ask you this, do you know how to find the slope given 2 points?

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

    \[m=\frac{ y_2-y_1 }{ x_2-x_1 }\] look familiar?

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

    isn't the slope y=mx+b

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

    10-5 m= _____ 5/3 6-3

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

    y=mx+b y= 5/3+b

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

    right?

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

    y= mx+b is the equation of a line. The slope is just m. Your problem has a parabola. But you can use the same formula to find rate of change. They want rate of change from 3 to 5. When x = 3, y = 120 When x = 5, y = 60 \[m=\frac{ 60-120 }{ 5-3 }=\frac{ -60 }{ 2 }=-30\]

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

    so the rate of change is -30

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

    ahhhhhh :D :D :D :D Ok That makes a lot more sense thank you so so so much for all your help and I will give u medals so check ur notifications thanks so much :D

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

    you're welcome :)

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

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.