what are the first 4 terms in the sequence represented by the expression 2n + 3?
a. 2,5,8,11
b. 4,5,6,7
c. 5,7,9,11
d. 5,10,15,20
2n + 3
2 * 1 + 3 = 2 + 3 = 5
2 * 2 + 3 = 4 + 3 = 7
2 * 3 + 3 = 6 + 3 = 9
2 * 4 + 3 = 8 + 3 = 11
5 , 7 , 9 , 11
Answer c.
To find the first 4 terms in the sequence represented by the expression 2n + 3, we can substitute the values of n from 1 to 4 into the expression and simplify.
1. For n = 1:
2(1) + 3 = 2 + 3 = 5
2. For n = 2:
2(2) + 3 = 4 + 3 = 7
3. For n = 3:
2(3) + 3 = 6 + 3 = 9
4. For n = 4:
2(4) + 3 = 8 + 3 = 11
Therefore, the first 4 terms in the sequence are 5, 7, 9, and 11.
The correct answer is option c. 5, 7, 9, 11.