Question

Identify the sequence graphed below and the average rate of change from n = 1 to n = 3.

Answer 1

@.Sam.

Answer 2

@TheSmartOne

Answer 3

ummm how to explain mhmm

so

we don't know the first term, but we know the few after it

each next term is getting divided by 2

x, 10, 5, 2.5, 1.25

what is the first term?

x/2 = 10

x = ?

Answer 4

20

Answer 5

so -15/2 is the rate of change

Answer 6

just don't know the next part

Answer 7

yeah so the first term is 20

and that's correct

and a geometric expression is in the form of

\(a_1 \cdot r^{n-1}\)

where a1 is the first term and r is the rate

we know the rate is dividing by 2, which is the same thing as multiplying by 1/2

and we know that the first term is 20 mhmm

Answer 8

so C

Answer 9

great job :)