anonymous
  • anonymous
Finding the average rate of change for this question?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
I got a table in this lesson with 3 valules (0,2) (1,-1) and (2, -6). How do I find the average rate of change from x=0 to x=2?
Nnesha
  • Nnesha
average rate of change = slope formula to find slope is \[\huge\rm \frac{ y_2 -y_1 }{ x_2 -x_1 }\] plugin x and y values when x =0 y = ? when x=2 y = ?
anonymous
  • anonymous
I have 3 points on in the table they gave me... Which are those above. Which ones do I use?

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Nnesha
  • Nnesha
` from x=0 to x=2` use the order where x = 0 and x=2
anonymous
  • anonymous
So the (0,2) and (2,-6)?
Nnesha
  • Nnesha
pair***
Nnesha
  • Nnesha
yes right :=)
anonymous
  • anonymous
Alright...
anonymous
  • anonymous
y2-y1 _____ x2-x1 -1-2 ____ 2-0 1 _ 2 = 0.5?
Nnesha
  • Nnesha
|dw:1444480522990:dw|
anonymous
  • anonymous
Erm. That doesn't seem right.
anonymous
  • anonymous
oh. Oops. Forgot my -6... Somehow.
Nnesha
  • Nnesha
hmmm y_2 means 2nd y value
Nnesha
  • Nnesha
ye
anonymous
  • anonymous
Lemme redo it.
Nnesha
  • Nnesha
ok
anonymous
  • anonymous
y2-y1 _____ x2-x1 -6-1 ____ 2-0 -7 _ 2 = 3.5
anonymous
  • anonymous
.......I keep noticing my mistakes.... Why dont I just look before I post lol
Nnesha
  • Nnesha
that's fine we learn from mistakes :=)
anonymous
  • anonymous
Lol that would be true. Though, I'd rather not make mistakes and just get it right the first time. XD
anonymous
  • anonymous
y2-y1 _____ x2-x1 -6-2 ____ 2-0 -4 _ 2 = -2
anonymous
  • anonymous
There. That seems like the answer.
Nnesha
  • Nnesha
-6-2 == ????
anonymous
  • anonymous
I thought it was a postitive 2? Oh... I wasn't adding. Then the answer is 4.
anonymous
  • anonymous
*-4.
Nnesha
  • Nnesha
|dw:1444480927636:dw| -6-2 isn't equal to -4 signs are the same we should add them
Nnesha
  • Nnesha
\(\color{blue}{\text{Originally Posted by}}\) @BetterOffLearningThenNot y2-y1 _____ x2-x1 -6-2 ____ 2-0 -4 _ 2 = -2 \(\color{blue}{\text{End of Quote}}\) see it's -6-2 which is correct
anonymous
  • anonymous
Yeah, but its not like we're multipling and we get a postitive 4. I'm not sure what you're getting at.
Nnesha
  • Nnesha
do you mean final answer 4 ??
anonymous
  • anonymous
Well, I think I made and mistake and later found it was -4 rather than 4. Is that correct?
anonymous
  • anonymous
....If i'm going through the process right.
Nnesha
  • Nnesha
yes right -6-2=-8 divided by 2 =- 4 :=) i thought u were saying -6-2 = 4 :D
anonymous
  • anonymous
Lol, okay! Thank you for your help! :D
Nnesha
  • Nnesha
np, good work!

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