Ted’s comic book collection, which was worth $1300 five years ago, has been increasing in value by 12% per year since then. which expression gives the current value of the collection?

a) 1300(1.12)5
b) 1300(.12)5
c) 1300(1.12)(5)

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

is there more to this question?

(−$11) ⋅ 12

deductions are negative and there are 12 months in a year