Question

Isabelle shared her photo with 51 followers. Each of them shared it with 2 friends, doubling the number of viewers each day.

Day Viewers
1 51
2 102
3 204

Provide an exponential function representing Isabelle's social media shares.

Answer 1

1738

Answer 2

the exponential general looking form is something like

y = A*b^x

right?

Answer 3

It would be number two cause if the are 51 followers and they sharedit with two people that is 51f*2p=102(p=people) (f=followers)

Answer 4

So @Snowman16 it would be number 2.

Answer 5

102

Answer 6

the value doubles each increase in x, or in 1 day the thing doubles

Answer 7

you are given 3 data points, you can use 2 of them to figure out the values of A and b

Answer 8

(1,51)

51 = A*b^1

(2,102)

102 = A*b^2


2 equations and 2 unknpowns, solve for A and b..

Answer 9

or you can use the ratio of each successive y value to figure out b right off the bat

Answer 10

each time you increase x by 1, y doubles, (you are multiplying by 2) b=2

Answer 11

then use any point to figure A

y = A*2^x

Answer 12

Thank you! I needed some one to explain this. I'm doing a project with someone. I told her this was how you do it. Now I have proof.

Answer 13

lol ya.