<h3>
Answer: -2</h3>
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Explanation:
Plug in x = -1 to find that
f(x) = 2|x-1|
f(-1) = 2|-1-1|
f(-1) = 2|-2|
f(-1) = 2*(2)
f(-1) = 4
If you repeat for x = 1, you should find that f(1) = 0
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Now use the average rate of change formula below. Effectively, we're using the slope formula more or less.
![m = \frac{f(b)-f(a)}{b-a}\\\\m = \frac{f(1)-f(-1)}{1-(-1)}\\\\m = \frac{0-4}{1+1}\\\\m = \frac{-4}{2}\\\\m = -2\\\\](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7Bf%28b%29-f%28a%29%7D%7Bb-a%7D%5C%5C%5C%5Cm%20%3D%20%5Cfrac%7Bf%281%29-f%28-1%29%7D%7B1-%28-1%29%7D%5C%5C%5C%5Cm%20%3D%20%5Cfrac%7B0-4%7D%7B1%2B1%7D%5C%5C%5C%5Cm%20%3D%20%5Cfrac%7B-4%7D%7B2%7D%5C%5C%5C%5Cm%20%3D%20-2%5C%5C%5C%5C)
The average rate of change on this interval is -2
This is the same as finding the slope through the points (-1, 4) and (1, 0).
Answer:
0.25=25/100. This is a rational number. It can only change to be irrational if it is multiplied with an irrational number.
Hi Braino
Algebra is an easy lesson.It gives egs such as t4 means t times 4.
Also
d=12+542443323
Its used as a blank answer to give.
Variables are kinda hard to learn
Need support?Go to KhanAcademy.com