vera_ewing
  • vera_ewing
Math question
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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vera_ewing
  • vera_ewing
vera_ewing
  • vera_ewing
@ospreytriple
vera_ewing
  • vera_ewing
Pretty sure this one is either a or b

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More answers

anonymous
  • anonymous
Why do you think it's A or B?
vera_ewing
  • vera_ewing
I used desmos to graph the functions, and A and B looked closest. I jus can't tell which one.
anonymous
  • anonymous
OK. But we have to actually work things out and not go by the looks of a desmos graph. (the choice of scale can distort things)
vera_ewing
  • vera_ewing
Ok
anonymous
  • anonymous
For example, one of the points on the given graph is (-2, 1). See it?
vera_ewing
  • vera_ewing
Yes
anonymous
  • anonymous
OK. Try substituting x=-2 into the given functions and see which ones return 1 for f(x).
vera_ewing
  • vera_ewing
C does right?
anonymous
  • anonymous
Not quite\[f(x) = |-2-2| = |-4| = 4\]
vera_ewing
  • vera_ewing
Oh wait D does right?
carolinar7
  • carolinar7
no
carolinar7
  • carolinar7
oH WAIT I THINK IT IS
anonymous
  • anonymous
That's right. Well done. Desmos can be a help, but you mustn't rely on it entirely.
vera_ewing
  • vera_ewing
So the answer is D?
anonymous
  • anonymous
Correct.
carolinar7
  • carolinar7
Yes because the 1/2 does the recipical, so x2 and multiplies the value of x by 2

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