A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

The graph below shows a company's profit f(x), in dollars, depending on the price of erasers x, in dollars, being sold by the company: Part A: What do the x-intercepts and maximum value of the graph represent? What are the intervals where the function is increasing and decreasing, and what do they represent about the sale and profit? Part B: If at one time the profit of the company was at least $120 what domain could possibly produce this profit? Part C: What is an approximate average rate of change of the graph from x = 1 to x = 4, and what does this rate represent?

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

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

    This is what I have for Part A: Part A: The x-intercepts represent the prices when no prices were made and the maximum value represents the highest profit. The price increases until x = 4. Then the prices decreases when x is greater than 4. Is that correct??

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

    @TheSmartOne

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

    @radar

  5. horsegirl27
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    That appears to be right for Part A.

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

    for part B the profit minimum of 120 dollars is when the price x = 1 the domain would be 1 to 6 (1,6)

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

    Ok so would it be 1 is greater than or equal to x which is less than or equal to 6?

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

    sorry - the profit is 120 dallars for x = 7 so domain is (1,7)

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

    so would it be 1 is greater than or equal to x which is less than or equal to 7

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

    yes

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

    ok thanks so much! For part c the rate of change would be 50 but what does it represent

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

    i should have written it as [1,7] but what you wrote is fine.

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

    ok thanks! What about C?

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

    like what does it represent?

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

    @welshfella

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

    i guess its the average increase of profit per unit increase of price of erasers.

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

    ok thanks so much! @welshfella do you think you could help me with another question?

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

    A sandbag was thrown downward from a building. The function f(t) = -16t2 - 32t + 384 shows the height f(t), in feet, of the sandbag after t seconds: Part A: Factor the function f(t) and use the factors to interpret the meaning of the x-intercept of the function. Part B: Complete the square of the expression for f(x) to determine the vertex of the graph of f(x). Would this be a maximum or minimum on the graph? Part C: Use your answer in part B to determine the axis of symmetry for f(x)? @welshfella

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

    can you post it separately please

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

    ok sure!

  21. 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.