Plug in n = 1 to get the first term E(n) = 5*n-2 E(1) = 5*1-2 E(1) = 3 So 3 is the first term
Do the same for n = 2 to get the second term E(n) = 5*n-2 E(2) = 5*2-2 E(2) = 8 So 8 is the second term
And again for n = 3 E(n) = 5*n-2 E(3) = 5*3-2 E(3) = 13 This means 13 is the third term
And again for n = 4 E(n) = 5*n-2 E(4) = 5*4-2 E(4) = 18 This means 18 is the fourth term
Finally, repeat for n = 5 E(n) = 5*n-2 E(5) = 5*5 - 2 E(5) = 23 So 23 is the fifth term
This sequence is linear because we're incrementing by the same amount each time. In this case, we're adding 5 each time for the sequence 3, 8, 13, 18, 23, and so on.