Question

Sarah had a couple of ddolaarrs

Answer 1

@jim_thompson5910

Answer 2

Does it mean that the 350 + new saving acoount= formula?

Answer 3

They tell you his savings function h(x) = 350, assume x is time, the 350 is the time x=0, he starts with that 350

Answer 4

Ok, I see

Answer 5

The interest function s(x) = 1.04^x - 1
means
each time you increase the time interval x
you multiply your money by 1.04, (grows by 4%)
then they take a dollar away for some reason

Answer 6

Hm okay I get that too. Is that all?

Answer 7

remember, if something is to the 0 power, that is always = 1

Answer 8

g(x) = 350*(1.04)^x - 1


your 350 grows by 1.04 (4%) each time you increase X (time) by a fixed interval
then they take a dollar from you

Answer 9

Okay! Thanks so much man!!