Question

Which of the following functions shown in the table below could not be an exponential function?

Answer 1

A. f(x)

B. g(x)

C. h(x)

D. k(x)

Answer 2

***Choose ALL that apply!! :)

Answer 3

if you can add a constant value to a term to get the next term, that series is not exponential

Answer 4

okay that would be a geometric sequence right??

Answer 5

geometric is exponential. arithmetic is not

Answer 6

okay so how do i figure out which ones are answers to my question and which ones aren't??

Answer 7

I would first pick out the arithmetic sequences, because they are clearly not exponential

The exponential series will have terms that you multiply by a constant to get to the next term.

Answer 8

idk.. which are arithmetic??

f(x) is not geometric irght? so its arithmetic??

g(x) is multiplied by 2 each time.. so not this one either right?

h(x) is + .25 each time so no right?

and k(x) is divided by 4 each time.. so idk so is f(x) the only answer here??

Answer 9

exponential will show a big variation between the first, middle and last number in the series (as a rule of thumb)

g(x) is clearly geometric ( x 2) so it is exponential

h(x) is arithmetic. so it is your answer

k(x) is multiplied by 0.25 so it is exponential (exponential "decay" )
f(x) looks to be exponential.

Answer 10

okay so f(x), g(x) and h(x) are all my answers??

Answer 11

h(x) could not be an exponential. It is your answer
g and k are exponential so they are not part of your answer
f could be exponential, but I do not know its equation....

Answer 12

so only h(x) is my answer then??

Answer 13

yes, I believe it is h(x) only

Answer 14

oh okay!! great! thx :)