please help asap (:What is the rule for the sequence with the first four terms below? 2.8, 2.2, 1.6, 1, ...f(x)= 3.4 - 0.6xf(x)=2.8 - 0.6xf(x)= 3.4 (- 0.6) ^xf(x)= 2.8 (0.6) ^x

For this case we first define the variable:
 x = number of terms.
 The equation that models the problem is:
 f (x) = 3.4 - 0.6x
 We have then that the first four terms are:
 x = 1
 f (1) = 3.4 - 0.6 (1) = 3.4 - 0.6 = 2.8
 x = 2
 f (2) = 3.4 - 0.6 (2) = 3.4 - 1.2 = 2.2
 x = 3
 f (3) = 3.4 - 0.6 (3) = 3.4 - 1.8 = 1.6
 x = 4
 f (4) = 3.4 - 0.6 (4) = 3.4 - 2.4 = 1
 Answer:
 The rule for the sequence is:
 f (x) = 3.4 - 0.6x
 option 1