anonymous
  • anonymous
What is the average rate of change from x = -4 to x = 1? -3 -1 0 1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
1 Attachment
freckles
  • freckles
can you find the function value at x=-4?
freckles
  • freckles
we will also need to find the function value at x=1

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freckles
  • freckles
|dw:1433531910745:dw| your graph looks kind of like this
freckles
  • freckles
|dw:1433532004730:dw| so you can you tell me the y values for both x=1 and x=-4?
anonymous
  • anonymous
3 and -1?
freckles
  • freckles
yep
freckles
  • freckles
enter in and evaluate \[\frac{y_2-y_1}{x_2-x_1}\]
freckles
  • freckles
you are just finding the slope of the line going through (1,-1) and (-4,3)
freckles
  • freckles
|dw:1433532217203:dw|
anonymous
  • anonymous
So the answer is -1
freckles
  • freckles
\[\frac{3-(-1)}{-4-1}\] hmm... what do you get when you do the numerator 3+1=? and the denomintor -(4+1)=?
anonymous
  • anonymous
\[\frac{ 4 }{ 5}\]
anonymous
  • anonymous
negative 5 sorry
freckles
  • freckles
don't forget the negative -(4+1)=-(5)=-5
freckles
  • freckles
yeah
freckles
  • freckles
you are done -4/5 is the average rate of change from x=-4 to x=1
anonymous
  • anonymous
but thats not one of the answer choices
freckles
  • freckles
you can always divide 4 by 5 too
anonymous
  • anonymous
i got 0.8
freckles
  • freckles
and attach the negative you had

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