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anonymous

  • 5 years ago

if a linear function is a straight line on a graph, does that mean it has no maximum?

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  1. anonymous
    • 5 years ago
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    hey you helped me earlier

  2. anonymous
    • 5 years ago
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    hey

  3. anonymous
    • 5 years ago
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    depends on your domain.

  4. anonymous
    • 5 years ago
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    how do i find the domaiin

  5. anonymous
    • 5 years ago
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    i know xis greater than or = to 0

  6. anonymous
    • 5 years ago
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    if the domain is from -infinity to +infinity, then the straight line has no maxima or minima.

  7. anonymous
    • 5 years ago
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    then your boundary values are where the line will have a maxima or minima

  8. anonymous
    • 5 years ago
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    so plug in x = 0 in your equation and see what the output is. That should be your minima.

  9. anonymous
    • 5 years ago
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    you dont have a maxima because there is no boundary to infinity.

  10. anonymous
    • 5 years ago
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    when i solved for the max, i used -b/2a and came up with x=2500

  11. anonymous
    • 5 years ago
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    then i plugged that into p(2500)= -.01(2500)^2+50(2500)+30000 to come up with 92500

  12. anonymous
    • 5 years ago
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    when i plugged in 0 into the equation, i got 30,000

  13. anonymous
    • 5 years ago
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    your equation is quadratic. it is not a straight line.

  14. anonymous
    • 5 years ago
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    your question was to do with straight lines.

  15. anonymous
    • 5 years ago
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    how did you kknow it is a quadratic

  16. anonymous
    • 5 years ago
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    because p(x) = -.01x^2 +50x+30000

  17. anonymous
    • 5 years ago
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    there is an x^2 term. so it is quadratic---> not a straight line.

  18. anonymous
    • 5 years ago
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    then the question isAnnual profit in thousands of dollars is given by the function, P(x) = -.01x2 + 50x + 30,000, where x is the number of items sold, x ≥ 0. then graph the profit function over its given domain

  19. anonymous
    • 5 years ago
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    use the 5 values to construct the graph 1,2,3,4,5

  20. anonymous
    • 5 years ago
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    you already asked me this question. I thought i had replied earlier

  21. anonymous
    • 5 years ago
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    yes but the graph

  22. anonymous
    • 5 years ago
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    i know the rest

  23. anonymous
    • 5 years ago
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    how would i graph this?

  24. anonymous
    • 5 years ago
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    would y then be 1 30049.99 2 30099.96 3 30149.91 4 30199.84 5 30249.75

  25. anonymous
    • 5 years ago
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    P(x) | | | | | | |---------------------------------------->X

  26. anonymous
    • 5 years ago
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    can anyone help?

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