Answer: The sequence is defined by the rule f(n) = 2n^2 + 4.
To find the first 4 terms of the sequence, we need to plug in the values of n into the rule and calculate f(n) for each value of n.
n = 1: f(1) = 2(1)^2 + 4 = 2 + 4 = 6
n = 2: f(2) = 2(2)^2 + 4 = 8 + 4 = 12
n = 3: f(3) = 2(3)^2 + 4 = 18 + 4 = 22
n = 4: f(4) = 2(4)^2 + 4 = 32 + 4 = 36
So, the first 4 terms of the sequence are 6, 12, 22, 36
Explanation: