Find an explicit formula for the geometric sequence -9, -18, -36, -72,
c(n) =

n=-9

Step-by-step explanation:

c is the number in the sequence and n is the number you have to multiply by. If the c is 8 you would do -9 times 8.

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

maybe i can