## anonymous one year ago For f(x) = 0.01(2)x, find the average rate of change from x = 3 to x = 8. A.0.08 B.0.496 C.2.48 D.5

1. anonymous

The average rate of change is given by: $\frac{f(x_1)-f(x_2)}{x_1-x_2}$

2. anonymous

Here, $$x_1=3$$ and $$x_2=8$$

3. anonymous

okay can u explain it more

4. anonymous

|dw:1438834225000:dw| The average rate of change is the inclination of the line passing through the points (x1, f(x1)) and (x2, f(x2))

5. anonymous

o okay would my answer be C. ?

6. anonymous

No

7. anonymous

You function if $f(x)=0.01(2)^x$

8. anonymous

$$f(3)=0.01(2)^3 = 0.08$$

9. anonymous

so u put 3 in for x

10. anonymous

do the same for $$f(8)$$ and calculate the average rate of change: $\frac{f(3)-f(8)}{3-8}$

11. anonymous

Yes

12. anonymous

ok i understand

13. anonymous

Ok, if you face any problem, just say

14. anonymous

can u help me with another problem

15. anonymous

sure

16. anonymous

Identify the domain of the exponential function shown in the following graph: A curve runs just above the x axis through the second quadrant, passes through point 0 comma 1 and continues off screen near 1 comma 12. all real numbers all positive numbers 1 ≤ x ≤ 30 all integers

17. anonymous
18. anonymous

19. anonymous
20. anonymous

Still not working, but based on teh description, it only takes positive values

21. anonymous

yes

22. anonymous

So, if i would say that the domain is all positive numbers. Although I'm not 100% sure, since I can't see the graph

23. anonymous

okay i will try it thx tho

24. anonymous

No problem ^^

25. anonymous

do u have time for one more