## anonymous one year ago Calculate the average rate of change for the given graph from x = –2 to x = 0 and select the correct answer below.

1. anonymous
2. anonymous

Courtesy of Texas Instruments 0 1 –1 –2

3. anonymous

@Nnesha @nincompoop @ganeshie8

4. anonymous

@Baby_Bear69

5. Baby_Bear69

idk , i'd be guessing C

6. anonymous

C is always my first guess

7. anonymous

@Jaynator495

8. anonymous

@paki

9. Baby_Bear69

@paki

10. Baby_Bear69

Haha we tagged him at the same time

11. anonymous

Do you know the formula for the average rate of change?

12. anonymous

no

13. anonymous

$M = \frac{ {y2}-y1 }{ x2-x1 }$

14. anonymous

so -1-(-1) 0-2

15. anonymous

2,-2

16. anonymous

or just -2

17. anonymous

So they're asking for the average rate of change from x = -2 to x = 0. So we have two ordered pairs. (-2, y1) and (0, y2). On the graph it shows that the y's are both -1. So yes you plug in the ordered pairs into the formula. $M = \frac{ -1 - (-1) }{ 0 - (-2) }$

18. anonymous

im still confused

19. anonymous

What part are you confused on? I'll try to clear it up. :)

20. anonymous

when i solved the formula i got 2 and that isent one of the answer choices

21. anonymous

You shouldn't get an ordered pair when you solve it. Also, when you put -1 - (-1) 0-2. You forgot that the 2 is also negative so it'd actually be 0 - (-2). The subtraction signs become addition/positive of course. So your equation becomes $M = \frac{ -1+1 }{ 0 + 2 }$