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  1. unknownunknown
    • one year ago
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    f(x) = y. When x is 4... y is.. ?

  2. anonymous
    • one year ago
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    wait... @unknownunknown i thought Y would be 4.. right?

  3. anonymous
    • one year ago
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    wouldnt X be -4 and y be 4?

  4. anonymous
    • one year ago
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    Well, similar to your last one. F(x) is the normal format. So, in this case, X = 4. Go along the X line until you reach 4. Then, go up until you hit the line. This, is where your Y line is, and your answer.

  5. anonymous
    • one year ago
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    so its C?

  6. unknownunknown
    • one year ago
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    Remember, a function gives us what's called a "dependent variable" from an"independent variable". If x is 4, it doesn't mean y will be 4. So f(x) does not equal x. f(4) is not necessarily 4. f(4) will be the y coordinate (4,y)

  7. anonymous
    • one year ago
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    If Y = 4 then X would equal 0.

  8. anonymous
    • one year ago
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    wait.. no its A? -4?

  9. UsukiDoll
    • one year ago
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    no :/

  10. geerky42
    • one year ago
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    "X = 4. Go along the X line until you reach 4. Then, go up until you hit the line. This, is where your Y line is, and your answer."

  11. unknownunknown
    • one year ago
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    As monkiwi said. Go to the value of x on the graph. What is the y value at that point?

  12. anonymous
    • one year ago
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    No, it isn't -4. Look at where the points intersect.

  13. anonymous
    • one year ago
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    If Y = -4 X = -8

  14. anonymous
    • one year ago
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    so i was right the first time.. its 4.. right?

  15. UsukiDoll
    • one year ago
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    o___O

  16. anonymous
    • one year ago
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    its not 4?? how is it not? the y meets at the 4??

  17. UsukiDoll
    • one year ago
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    we are given f(4) where x = 4.... go to where x = 4 it's like ... (4, y) who is the y in here?

  18. geerky42
    • one year ago
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    |dw:1433129711758:dw|

  19. UsukiDoll
    • one year ago
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    wow thanks for giving out the direct answer -_-!

  20. unknownunknown
    • one year ago
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    Remember, your answer can only include somewhere that's actually a point on the graph (in this case the infinite points contained in the line)

  21. anonymous
    • one year ago
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    MY *************************************!!!! I AM THE MOST IDIOT PERSON!! I SWEAR.. u guys prob think im 3.. ugh! its 8..

  22. geerky42
    • one year ago
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    Not really direct answer...

  23. anonymous
    • one year ago
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    dont tell me its not 8??? if its not 8.. dear .. my brain

  24. geerky42
    • one year ago
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    I was just repeat @MonKiwi 's explanation as visual explanation.

  25. UsukiDoll
    • one year ago
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    if you think that's tough, check out all the questions I've asked >:D

  26. anonymous
    • one year ago
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    ok.. well my brain just xploded.. ugh who do i give medal too?? u all helped.. ALOT..

  27. geerky42
    • one year ago
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    No one :)

  28. anonymous
    • one year ago
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    none?

  29. UsukiDoll
    • one year ago
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    yeah make it fair.. no one

  30. anonymous
    • one year ago
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    um ok..

  31. UsukiDoll
    • one year ago
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    wait until next question then anyone can free for all.

  32. geerky42
    • one year ago
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    Go to http://mathoverflow.net/ And @UsukiDoll 's question will be nothing :)

  33. anonymous
    • one year ago
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    let me do this. one sec

  34. UsukiDoll
    • one year ago
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    what does that supposed to mean?

  35. UsukiDoll
    • one year ago
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    Oh I see! Hey man I'm getting there slowly but surely :P

  36. anonymous
    • one year ago
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    what is F(5) A. –8 B. 0 C. 2 D. 5 http://static.k12.com/calms_media/media/1417000_1417500/1417260/1/35db032be3c6dfeeebcc053d76b1a6f3345aa510/MS_PA_130905_170066.jpg

  37. anonymous
    • one year ago
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    first to answer ill medal.. plis explain :D

  38. UsukiDoll
    • one year ago
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    I'm out. This is too easy... I wanna do ODEs

  39. anonymous
    • one year ago
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    plis.. cmon! D:

  40. anonymous
    • one year ago
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    just answer.. cmon!! D::::

  41. anonymous
    • one year ago
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    the smart ones think im dumb.. and im a straight A student.. YIKEs

  42. UsukiDoll
    • one year ago
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    fineeeeeeeeeeeee F(x) -> F(5) implies that x = 5. just find where x = 5 in your chart and you will have y

  43. anonymous
    • one year ago
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    so c?

  44. UsukiDoll
    • one year ago
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    seriously?

  45. anonymous
    • one year ago
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    im sorry.. Im really trying here. you said the 5. and on the chart it has a 2 by it..

  46. UsukiDoll
    • one year ago
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    I said f(x) was the standard notation of a function . If we have something like f(5).. then .. I said x = 5 because f(x) -> f(5) implies that x = 5. on the x chart LOOK UP 5

  47. anonymous
    • one year ago
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    so b..

  48. UsukiDoll
    • one year ago
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    yeah

  49. anonymous
    • one year ago
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    i gave u medal.. sorry for wasting ur time.. :/

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