Solve.
-The number of students in a school in year $n$ is estimated by the model $a _ { n } = 7 n ^ { 2 } + 13 n + 81$. About how many students are in the school in each of the first three years?
A) $108,135,183$
B) $101,135,162$
C) $101,135,183$
D) $114,148,196$

Question

Quizplus · Accepted Answer

To find the number of students in each of the first three years, substitute $n = 1$, $n = 2$, and $n = 3$ into the model $a _ { n } = 7 n ^ { 2 } + 13 n + 81$. For $n = 1$, $a_1 = 7(1)^2 + 13(1) + 81 = 101$. For $n = 2$, $a_2 = 7(2)^2 + 13(2) + 81 = 135$. For $n = 3$, $a_3 = 7(3)^2 + 13(3) + 81 = 183$. Thus, the correct sequence is $101, 135, 183$.

Solve -The Number of Students in a School in Year nnn

Solve
-The Number of Students in a School in Year $n$