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swin2013

  • 2 years ago

Sketch a continuous curve y = f(x) with the following properties. Label coordinates

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  1. swin2013
    • 2 years ago
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    |dw:1355273004366:dw|

  2. swin2013
    • 2 years ago
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    |dw:1355273205902:dw| something close to that?

  3. swin2013
    • 2 years ago
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    well at 4,4 it's an inflection point meaning from positive to negative or negative to positive

  4. swin2013
    • 2 years ago
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    @zepdrix

  5. zepdrix
    • 2 years ago
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    I just wanna first make sure I understand the language they're using. x<2, falling concave up. Does that mean the slope is falling? Or that the function is falling? Hmm I think it means the function is falling, because if the slope was falling, it would be concave down, as you have drawn it in the picture. See how you have a HAT shape before x=2? Isn't that concave down? Am I looking at it correctly? :D heh

  6. zepdrix
    • 2 years ago
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    |dw:1355274267316:dw|

  7. swin2013
    • 2 years ago
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    lol well x<2? i read it as any function less than two. and the curve is "falling" concave up

  8. swin2013
    • 2 years ago
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    so yea i drew the first part wrong -_-

  9. zepdrix
    • 2 years ago
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    From 2 to 4, the function needs to be RISING the entire time, it can't dip downward, here is an example.

  10. zepdrix
    • 2 years ago
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    |dw:1355274423728:dw|

  11. swin2013
    • 2 years ago
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    |dw:1355274446120:dw|

  12. swin2013
    • 2 years ago
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    at 4 it changes slope direction right?

  13. zepdrix
    • 2 years ago
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    lololol XD Oh man i love my pen tool c: nice straight lines lol

  14. zepdrix
    • 2 years ago
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    Mmmm no i don't think so :O

  15. zepdrix
    • 2 years ago
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    I meannnn, lemme make sure i understand what you're asking :D

  16. zepdrix
    • 2 years ago
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    from BEFORE 2, it was concave up, it continues to be concave up all the way til 4. With a horizontal tangent at 2.

  17. zepdrix
    • 2 years ago
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    Make sure you understand what concave up looks like.

  18. swin2013
    • 2 years ago
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    well at 4,4 there's an infflection point

  19. zepdrix
    • 2 years ago
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    |dw:1355274652299:dw|See how the slope changes from increasing to decreasing? The FUNCTION is still increasing, but now the SLOPE is decreasing, creating a HAT instead of a bowl.

  20. zepdrix
    • 2 years ago
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    CCU = Concave Up CCD = Concave Down In case there was any confusion about that :)

  21. swin2013
    • 2 years ago
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    oooohhh okk! and yes! your peen tool is awesome lololol

  22. zepdrix
    • 2 years ago
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    hah XD

  23. zepdrix
    • 2 years ago
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    Can you picture how it will end? :D We have another tangent at x=6 right? Then the instructions say umm Falling Concave Down for the rest of the way... So we'll continue to have a nice HAT shape, with the top of the hat being at x=6.

  24. swin2013
    • 2 years ago
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    lol thanks!

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