## anonymous one year ago Which of the following options is an equivalent function to f(x) = 3(2)3x?

1. anonymous

Answers: f(x) = 3(8)x f(x) = 24x f(x) = 27(8)x f(x) = 3(8x)

2. anonymous

@Vocaloid

3. DanJS

none

4. anonymous

@DanJS what do u mean

5. anonymous

@Vocaloid

6. anonymous

7. anonymous

@Saiyan

8. DanJS

As typed, you have f(x) = 3 * 2 * 3*x = 18x no way to get any of those answers with that...

9. anonymous

@DanJS sry its 3(2)^3x

10. CBARREDO1

f(x)= 3(8x)

11. anonymous

|dw:1438038522974:dw|

12. CBARREDO1

13. anonymous

@DanJS

14. CBARREDO1

15. anonymous

to the power of 3x

16. anonymous

3(2)^3x

17. CBARREDO1

@jaredhm29 THE ANSWER IS: f(x)= 3(8x)

18. anonymous

XD

19. anonymous

it is A $3(8)^x$

20. CBARREDO1

What have I been saying?!

21. anonymous

Which of the following options results in a graph that shows exponential decay? f(x) = 0.6(2)x f(x) = 3(0.7)x f(x) = 0.4(1.6)x f(x) = 20(3)x

22. mathstudent55

$$f(x) = 3(2)^{3x}$$ Rule: To raise a power to a power, multiply powers. $$\large (a^m)^n = a^{mn}$$ $$\large f(x) = 3(2)^{3x}$$ Apply the rule above in reverse to $$2^{3x}$$ $$\large f(x) = 3(2^3)^x$$ $$\large f(x) = 3 \cdot 8^x$$

23. anonymous

Can u help Which of the following options results in a graph that shows exponential decay? f(x) = 0.6(2)x f(x) = 3(0.7)x f(x) = 0.4(1.6)x f(x) = 20(3)x @mathstudent55

24. CBARREDO1

f(x) = 3(0.7)x

25. anonymous

Which of the following options results in a graph that shows exponential growth? f(x) = 0.4(3)x f(x) = 3(0.5)x f(x) = 0.8(0.9)x f(x) = 0.9(5)−x

26. CBARREDO1

f(x) = 0.4(3)x

27. anonymous

For f(x) = 0.01(2)x, find the average rate of change from x = 3 to x = 8. 0.08 0.496 2.48 5

28. anonymous

@CBARREDO1

29. mathstudent55

$$\large f(x) = ak^x$$ As exponents become larger, If $$k \gt 1$$, it is exponential growth. If $$0 \lt k \lt 1$$ it is exponential decay.

30. anonymous

oh thx

31. mathstudent55

Find f(8) and f(3). Then do (f(8) - f(3)) / (8 - 3)

32. anonymous

can u help me with these 2 For f(x) = 0.01(2)x, find the average rate of change from x = 3 to x = 8. 0.08 0.496 2.48 5 and A wrestling match has eliminations each round. The table below shows the number of wrestlers in each of the first 4 rounds of the tournament: Round (x) 1 2 3 4 Wrestlers f(x) 64 32 18 9 Compute the average rate of change of f(x) from x = 1 to x = 4 and identify the meaning of that rate. 55; there were 55 fewer wrestlers between rounds 1 and 4 3; there were 3 rounds between rounds 1 and 4 negative fifty five over three; on average, there were 55 fewer players for every 3 rounds negative three over fifty five; on average, there were 3 fewer players for every 55 rounds

33. anonymous

@mathstudent55

34. anonymous

@CBARREDO1

35. mathstudent55

Round x 1 4 Wrestlers f(x) 64 9 f(1) = 64 f(4) = 9 Subtract f(4) - f(1) and divided by the difference (4 - 1)

36. anonymous

So B?

37. anonymous

38. anonymous

55; there were 55 fewer wrestlers between rounds 1 and 4 3; there were 3 rounds between rounds 1 and 4 negative fifty five over three; on average, there were 55 fewer players for every 3 rounds negative three over fifty five; on average, there were 3 fewer players for every 55 rounds

39. mathstudent55

How did you get B? Read what I wrote above and do it. Then compare with the choices. Don't just guess.

40. mathstudent55

Round x 1 4 Wrestlers f(x) 64 9 f(1) = 64 f(4) = 9 Subtract f(4) - f(1) and divided by the difference (4 - 1) What is f(4) - f(1) = ?

41. anonymous

f(3)

42. mathstudent55

No. f(1) = 64 f(4) = 9 Use 64 and 9 for f(1) and f(4) What is f(4) - f(1) = ?

43. anonymous

-55 @mathstudent55

44. anonymous

@mathstudent55

45. mathstudent55

Correct. Now what is 4 - 1 ?

46. anonymous

3

47. anonymous

OHHHHHHHHH SO ITS C ON AVERAGE THERE WERE 55 FEWER PLAYERS FOR EVERY 3 ROUNDS

48. anonymous

@mathstudent55

49. mathstudent55

Correct.

50. anonymous

THANKS SO MUCH FOLLOW ME ON INSTAGRAM AT JHERRERA.29

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