## anonymous one year ago can someone explain how to find rate of change in this graph (will give medal and fan)

1. anonymous

2. Nnesha

pick two poitns

3. Nnesha

points **

4. anonymous

ok (2,14) (10,70)

5. Nnesha

nice :=)

6. Nnesha

rate of change means slope $\huge\rm \frac{ y_2-y_1 }{ x_2 -x_1 }$ now use those points to find slope

7. Nnesha

y_2 and x_2 mean 2nd y and 2nd x $\huge\rm (x_1,y_1)(x_2,y_2)$

8. anonymous

68/-4?

9. Nnesha

hmm how did you get 68 and negative 4 ?? :)

10. Nnesha

remember y's should be at the top

11. anonymous

56/8 sorry i plugged the numbers in wrong the first time

12. Nnesha

it's oky yes that's right now divide 56 by 8 and ur done! :)

13. anonymous

7 oh wow that was easier than i thought thank you so 7 would be my value?

14. Nnesha

yes 7 is rate of change

15. anonymous

ok thanks so much

16. Nnesha

my pleasure :)

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