An office machine purchased new for $3,600 loses $400 each year.

Assume the value continues to decrease the same amount each year. If f(x) represents the value of the office machine after x years, which linear function models the given situation?
A ) f(x) = 400x + 3,600
B ) f(x) = -400x - 3,600
C ) f(x) = -400x + 3,600
D ) f(x) = 400x - 3,600

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

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.

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the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.