Question

Meg enjoys listening to classical music and downloads music files regularly from the internet. She already has three hours of classical music in her collection. From the second month onwards, the number of hours of classical music she downloads each month is five percent greater than the number of hours of classical music she downloaded the previous month. Which function best shows the total number of hours of classical music Meg has in her collection f(x) after x months?

f(x) = 2(1.05)^x

f(x) = (1.05)^x + 3

f(x) = (1.05)^x - 3

f(x) = (1.05)^x + 2

Answer 1

@justicehunter i think it is the second one.

Answer 2

yes thats correct

Answer 3

The function f(x) is shown below.

f(x) = (3)x - 2

The function f(x) is shifted to the left by 13 units. Which of the following best represents the new function?

f(x) = (3)^x + 11

f(x) = (3)^x + 13

f(x) = (3)^x -15

f(x) = (3)^x - 13

Answer 4

@justicehunter

Answer 5

i think it was the last one.

Answer 6

@hartnn @E.ali @AllTehMaffs @abb0t @charlotte123 @CGGURUMANJUNATH please help

Answer 7

and f(x) = (3)x - 2 is this f(x)=3^(x-2) ?

Answer 8

oh i thought it was to subtract to shift it left and add to shift it right

Answer 9

for example y=x. if you write y=x+13 then you shift the graph 13 units left, correct?

Answer 10

so it was the second one?

Answer 11

no you can always try how things work on y=x its simple you can graph y=x+13 and see that the graph is shifted 13 units left. that indicates that f(x+13) is the answer!

Answer 12

f(x)=3^(x-2) ? is f(x) this? you wrote it wrong on the question

Answer 13

so it has to be the second one then because these are the only choices?

Answer 14

there are no parenthises i copy and pasted..

Answer 15

no but there is no exponent on the question you see.

Answer 16

f(x) = (3)x - 2 this mean 3x-2 you always have to use correct notation so we can understand the question:(

Answer 17

lol this is all it says...

Answer 18

if x-2 is exponent you have to write 3^(x-2) it like that. so instead of x put x+13 and there is your answer

Answer 19

it was F(x) = (3)^x - 2

Answer 20

yes when you put x+13 instead of x you'll end up with 3^x+11

Answer 21

so which one is it???

Answer 22

f(x) = (3)^x + 11 ? the first one

Answer 23

oh...lol...yea i didn't see that post up there...

Answer 24

ok thank you i have to submit the test now...the epic moment...

Answer 25

43/50 not bad thanks!

Answer 26

no problem! i wish you the best!