Answer:
$ 8535
Step-by-step explanation:
Given,
The average cell phone bill in 2009 = $ 650,
Since, the average cost each year is about 109.2% of the previous year,
Thus, there is a GP, that shows the average cell phone bill of every year,
That having first term, a = 650,
Common difference, d = 109.2 % = 1.092,
Thus, the total cell phone bill for 2009-2018 = Sum of the 9 terms of the above G.P.
Hence, The person will pay approximately $ 8535 for 2009 - 2018.
First option is correct.
Answer : domain: {x | x is a real number}; range: {y | y >- 8}
the domain and range of
For exponential function , there is no restriction for x
So domain is all real numbers
For exponential function ,
The range is y > b
The range of is y> -8
domain: {x | x is a real number}; range: {y | y > –8}