anonymous
  • anonymous
I don't understand this and I would love to learn how to do this: Consider the function g: {(2, 7), (4, 9), (12, 19), (20, 27), (31, 38)} What is g (12)?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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zepdrix
  • zepdrix
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zepdrix
  • zepdrix
|dw:1433576411940:dw|
zepdrix
  • zepdrix
You put the x value into the function, the y value comes out.

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zepdrix
  • zepdrix
Do you see how that might work with the 12? the 12 is corresponding to x=12
anonymous
  • anonymous
so for (2, 7) g would be 3.5?
zepdrix
  • zepdrix
No, it's not g `times` 2. function notation takes a little getting used to I guess :) hehe. It's the function g, at a specific moment in time or place. The 2 is connected to the g in that way. so we would say that g `of` 2 equals 7. g=7 for that particular x value
anonymous
  • anonymous
ooh I always thought of it as times xD sorry so G would be 2 at a certain time and would that would equal 7?
zepdrix
  • zepdrix
yes, at a certain place, x=2, g=7.
zepdrix
  • zepdrix
you put 2 INTO the g function and 7 comes out.
zepdrix
  • zepdrix
|dw:1433576698134:dw|
anonymous
  • anonymous
omg soo much clearer now xD so I need to find what goes into g that comes out 12?
zepdrix
  • zepdrix
The first value in the coordinate pair is always the value going IN
anonymous
  • anonymous
so ima give it a shot, please correct me if im wrong lol, The answer is 7? 7 goes into g to make 12?
zepdrix
  • zepdrix
|dw:1433576795658:dw|
anonymous
  • anonymous
ok before I answer, does the function provide the answer? like (12,19)
zepdrix
  • zepdrix
yes, the ordered pair is written like this, (input, output)
anonymous
  • anonymous
ooh ok so it is 19?
zepdrix
  • zepdrix
ok good job \c:/ so when x=12 goes INTO the function g(x), then 19 comes OUT of it. so therefore g(12) = 19
anonymous
  • anonymous
omg awesome thank you! :D
zepdrix
  • zepdrix
np! Oh and, \(\Large\bf \color{#008353}{\text{Welcome to OpenStudy! :)}}\)
anonymous
  • anonymous
Thank you :)

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