Question 1:
a = 2n - 3
To find the first five terms, we have:
First term: a1 = 2(1) - 3
a1 = 2 - 3
a1 = -1
Second term: a2 = 2(2) - 3
a2 = 4 -3
a2 = 1
Third term: a3 = 2(3) - 3
a3 = 6 - 3
a3 = 3
Fourth term: a4 = 2(4) - 3
a4 = 8 - 3
a4 = 5
Fifth term: a5 = 2(5) - 3
a5 = 10 - 3
a5 = 7
Therefore, the first five terms of the sequence are:
-1, 1, 3, 5, 7
The domain is all values of the input (n): {1, 2, 3, 4, 5}
The range is all values of the output (a): {-1, 1, 3, 5, 7}
ANSWER:
First five terms = -1, , 1, 3, 5, 7
Domain: {1, 2, 3, 4, 5}
Range: {-1, 1, 3, 5, 7}