What is the value of f(x) = 20 (2^x) when x = 3?
A. f(3) = 120
B. f(3) = 64,000
C. f(3) = 160
D. f(3) = 80,000

Which equation represents exponential decay?
A. f(x) = 8^x
B. f(x) = .08^x
C. f(x) = 2(4^x)
D. f(x) = 10(2^x)

Question

What is the value of f(x) = 20 (2^x) when x = 3?
	A.	f(3) = 120
	B.	f(3) = 64,000
	C.	f(3) = 160
	D.	f(3) = 80,000

Which equation represents exponential decay?
	A.	f(x) = 8^x
	B.	f(x) = .08^x
	C.	f(x) = 2(4^x)
	D.	f(x) = 10(2^x)

calculusfunctions · Answer

For the first question, if$$f(x)=20(2^{x})$$then$$f(3)=?$$What do you think this means?

calculusfunctions · Answer

I see people typing. I hope they aren't about to just give out answers!

cenaida · Answer

Thanks for explaining you guys ! i kinda get it now :D

calculusfunctions · Answer

Stop giving out the answers please! Because you really are not helping. You're just showing off! No one cares or is impressed thet you know the answers! You are supposed to teach.

calculusfunctions · Answer

@hartnn as the moderator, do you see what's going on here? People are just giving out answers even when they're asked not to.

hartnn · Answer

i do, and i am taking actions, thanks for your concern :)

calculusfunctions · Answer

Now @cenaida, do you want to learn?

anonymous · Answer

Alright Calculus, thanks for reporting me, when I was just trying to help, it wasn't your question, so don't tell me what to do. If it was your question, them I would wouldn't of revealed the answer, but this was @cenaida question, and if he didn't want me to reveal the answer I wouldn't have.

cenaida · Answer

#2 yes

calculusfunctions · Answer

If yes, then please answer my question. If you understand, then what is the correct answer to the first question? it is not D.

cenaida · Answer

its C

calculusfunctions · Answer

@Vijay.is.class obviously you don't have any respect for learning. As a teacher, I'm here to teach, so I'll make it my business to tell you if you're doing something wrong, whether you like it or not!

calculusfunctions · Answer

Yes! @cenaida ! It is C.

calculusfunctions · Answer

Now what about Question #2?

cenaida · Answer

B?

calculusfunctions · Answer

Yes! Very Good @cenaida Can you tell me why?

anonymous · Answer

@calculusfunctions -  I am sorry you took it that way. I was trying to say that, I didn't know I should reveal the answers, I was just trying to help him out on his doubt. No hard feelings man.