A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

smurfy14

  • 5 years ago

Does this graph have any minimums or maximums?

  • This Question is Closed
  1. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1 Attachment
  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    min is -2 when x = -3

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

    looks like no max but we only see part of the graph

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

    (-3, -2) is the minumum but no maximum

  5. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thats the whole graph i think it just keeps going

  6. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thanks!

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

    hold the phone. minimum means minimum value that y takes on. the minimum is not a coordinate. the minimum is a number. in this case it is -2

  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    there is no minium

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

    who's to say it continues in a postitve direction?

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

    There is domain and range both of which have a minimum value in this case,

  11. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wow im confused

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

    the only information you know is that if it is a function x=-3 is the beggining of the domain but yo udon't have any range info

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

    This graph represents a function of x. The domain of a function is all permissable values of x. The range, all permissable values of y Hence minimum value of x = -3 and minimum value oy y = -2

  14. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    hey gianfranco is what satellite said earlier true?

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

    yes. this is a never ending source of confusion. the minimum is the output, not the input.

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

    Of course, satellite is always right.

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

    for example, if the function is \[f(x)=x^2-5\] the minimum value is -5

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

    the fact that this function takes on the value of -5 when x = 0 does not make the minimum (0,-5) the minimum is a number, not a coordinate

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

    and no, i am often wrong!

  20. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok im going to take your word on it but what ecin is saying is reasonable too

  21. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ah so what should i put as the answer??

  22. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think it is better to acknowledge the point at which the graph takes a minimum vale which includses voth domain and range,

  23. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    value

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

    There is a minimum. There is no max because the graph appears to be cut off and 'continues' though we can't see it.

  25. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    um we kinda alread acknowledged that lol

  26. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    there's no minimum

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

    jesus

  28. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    f(x) = x^2 -5 and it is said the minimum value is =-5 and to be clear you are saying the minimum value is the y value then you are saying f(-5) = (-5)^2 -5 which is not true. this implies -5 = 20

  29. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh. wait i didn't see the equation sorry

  30. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I just saw the graph lol

  31. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ecin there was no equation

  32. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    then there's no minimum

  33. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you don't know what happens outside. You are garanteed a min domain x-coordinate

  34. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    well given that the graph doesnt show which way it continues i think (-3,-2) is correct

  35. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    that's my point exactly

  36. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Look at the graph Smurfy the dot at the left hand side implies there ore no lower points on the graph in terms of numerical value, so give both x and y values for sheer safety :) The fact that there is no point on the right of the graph implies it goes on to infinity,

  37. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    picture a capacitor graph before it discharges

  38. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you don't konw the lim x->inf

  39. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    gian you are right and based on http://tutorial.math.lamar.edu/Classes/CalcI/MinMaxValues.aspx example four the minimum is probably x=-3

  40. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Definitely not probably I can assure you :)

  41. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok well should i pout x=-3 or a coordinate?

  42. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    *put

  43. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    in example 4 . the x doesn't increase anymore showing you tahat theres o more inclrease or decrease

  44. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do what you want. I'm tired of arguing.

  45. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Coordinate but remember to state that it is a definite minimum, and importantly also state that there is no maximum.

  46. smurfy14
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what do you mean by definite minimum? and ok

  47. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    he means i'm wrong, where i stand on my belief i'm right

  48. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Well Ecin, the question doesn't ask about extemum, os the point would at least be considered relative minimum.

  49. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it's a local min for sure

  50. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    This is getting a little heavy. Look at the graph. It is not complicated. It shows that the graph does not extend beneath the coordinate (-3, -2) and also it does not 'appear' to have a resting place in the first quadrant .

  51. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the minimum value means the minimum output, not the minimum input. if your domain is all real numbers then there is no minimum input. so say that the minimum value of \[f(x)=x^2-5\] is -5 means this is the smallest output you can get. it does not say that the minimum possible value of x is -5, nor does it say what \[f(-5)\] is

  52. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    if you are taking calc you will frequently have to find the maximum or minimum value of a function. to do this you will probably have to find the value of x that gives it to you. say the minimum values occurs when x = 7. that does not mean the minimum value is 7. that means the minimum value is f(7) whatever that may be.

  53. 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.