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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: GRAPH IS DOWN BELOW VVVV 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? (5 points) Part B: If at one time the profit of the company was at least $120 what domain could possibly produce this profit? (2 points) Part C: What

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    I already have answer "A" I need help with B & C.

  3. anonymous
    • one year ago
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    B is asking for the interval where price is at least $120, so between (including) the x-values where the graph is 120.

  4. anonymous
    • one year ago
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    1, 7? or 1, 4?

  5. anonymous
    • one year ago
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    looks like [1, 7] to me

  6. anonymous
    • one year ago
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    Ok, so the answer would be. The domain that would produce this profit is "1, 7" ?

  7. anonymous
    • one year ago
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    yes

  8. anonymous
    • one year ago
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    Ok thx! Do you think you could help me out with another?

  9. anonymous
    • one year ago
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    ok

  10. anonymous
    • one year ago
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    A Labrador leaps over a hurdle. The function f(t) represents the height of the Labrador above the ground, in inches, at t seconds: f(t) = -16t2 + 26t A foxhound jumps over the same hurdle. The table shows the height of the foxhound above the ground g(t), in inches, at t seconds: https://gyazo.com/03fedf1a360f4176c528b31531da0d83 Part A: Compare and interpret the maximum of f(t) and g(t)? (4 points) Part B: Which function has a greater x-intercept? What do the x-intercepts of the graphs of f(t) and g(t) represent? (4 points) Part C: Determine the y-intercepts of both functions, and explain what this means in the context of the problem. (2 points)

  11. anonymous
    • one year ago
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    The gyazo is the picture table/whole question

  12. anonymous
    • one year ago
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    ok. which part do you need help with?

  13. anonymous
    • one year ago
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    Ok, so with A, it would be 0.8 7.36?

  14. anonymous
    • one year ago
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    Wait, im confused xD

  15. anonymous
    • one year ago
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    It looks like for g(t), 7.56 inches is the maximum and occurs at 0.7 seconds You have to graph or use -b/(2a) to find the maximum for f(t)

  16. anonymous
    • one year ago
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    What do I put in for b and a?

  17. anonymous
    • one year ago
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    If you don't know how to do it that way, just graph it on desmos and it will spit out the maximum for you. You're going to need the graph for part B and C anyway

  18. anonymous
    • one year ago
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    Is this right? A. The maximum for g(x) is at time 0.6, and the maximum for f(x) is at (13/16,169/16) 169/6=10.5625 inches at time 0.8125 seconds?

  19. anonymous
    • one year ago
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    yeah

  20. anonymous
    • one year ago
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    Wait, Really!

  21. anonymous
    • one year ago
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    yes. for x-intercepts, you can set f(t) equal to 0 and factor to solve for t. For g(t) the x-intercepts are the distances where g(t) = 0

  22. anonymous
    • one year ago
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    And is this right for B. f(t) has greater x intercepts, meaning that when the labrador will land later than the fox when it jumps over the hurdle

  23. anonymous
    • one year ago
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    Ask your teacher dude. I'm here trying to help you solve a problem and you're off googling answers someone else turned in last year -_-

  24. anonymous
    • one year ago
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    Because im confused, I dont know what goes where. There are so many f(t), g(t), t, f(t) = -16t2 + 26t, etc..... And I just get so confused from what to put in where to solve it.

  25. anonymous
    • one year ago
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    But if you would like to still help me it would be much appreciated and I will try my best to follow your steps.

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