The following table shows Alexandra's investment options over the course of three years. Her initial investment was $1000.
Number of years
Option 1 (amount in dollars)
Option 2 (amount in dollars)
1
1,100
1,100
1,200
1,210
1,300
1,331
Write one function for each option to describe the value of the investment f(n), in dollars,
after n years.
The function for Option 1 is:
The function for Option 2 is:

step-by-step explanation:

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.