anonymous
  • anonymous
!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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freckles
  • freckles
reaplce a with -1 and b with 2 or vice versa that is you can do either: \[\frac{f(2)-f(-1)}{2-(-1)} \text{ or } \frac{f(-1)-f(2)}{-1-2}\]
freckles
  • freckles
now if you want to continue you would need to know the meaning of f(x) like the graph or the expression it is assigned to
freckles
  • freckles
impossibly for me to know if that is right or wrong since you still haven't said what f was

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freckles
  • freckles
ok so f(2)=? look on the x-axis and find x=2 there the find the y value that corresponds to x=2
freckles
  • freckles
where is the line at when x=2?
anonymous
  • anonymous
So, X=2 and Y=0?
freckles
  • freckles
yes so f(2)=0
freckles
  • freckles
now we need to find f(-1)
freckles
  • freckles
where is the line at when x=-1?
anonymous
  • anonymous
Is that Y=4?
freckles
  • freckles
yep so f(-1)=4
freckles
  • freckles
now we plug in
freckles
  • freckles
\[\frac{f(2)-f(-1)}{2-(-1)}=\frac{0-4}{2-(-1)}\]
freckles
  • freckles
0-4=? 2-(-1)=?
anonymous
  • anonymous
-4/3 ?
freckles
  • freckles
yep sounds awesome and it doesn't matter if you did the other way: \[\frac{f(-1)-f(2)}{-1-2}=\frac{4-0}{-1-2}=\frac{4}{-3}=-\frac{4}{3}\] you still get -4/3
anonymous
  • anonymous
Awesome! Thanks so much for the help!
freckles
  • freckles
np

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