1. Rakesha claims that the equation f(n) = 5n – 7 is the function notation for the sequence that is represented by the explicit formula a, = -2 + 5(n – 1). James doesn't understand how this can be the case. a. Help James by listing the steps to write the explicit formula of the given sequence in function notation. Provide a rationale for each step. b. Graph the function. Label the first 5 values of the sequence on the graph.

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Chapter2: Second-order Linear Odes
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## Practice

1. **Rakesha claims that the equation \( f(n) = 5n - 7 \) is the function notation for the sequence that is represented by the explicit formula \( a_n = -2 + 5(n - 1) \). James doesn’t understand how this can be the case.**
   
   a. **Help James by listing the steps to write the explicit formula of the given sequence in function notation. Provide a rationale for each step.**
   
   b. **Graph the function. Label the first 5 values of the sequence on the graph.**

2. **Determine whether each table of values represents a linear function. For those that represent linear functions, write the function. For those that do not, explain why not.**

   a. 
   \[
   \begin{array}{|c|c|}
   \hline
   x & f(x) \\
   \hline
   3 & 14 \\
   4 & 18 \\
   5 & 23 \\
   6 & 29 \\
   \hline
   \end{array}
   \]

   b. 
   \[
   \begin{array}{|c|c|}
   \hline
   x & f(x) \\
   \hline
   0 & 2 \\
   1 & -1 \\
   2 & -4 \\
   3 & -7 \\
   \hline
   \end{array}
   \]

   c. 
   \[
   \begin{array}{|c|c|}
   \hline
   x & f(x) \\
   \hline
   1 & 11 \\
   2 & 16 \\
   3 & 21 \\
   4 & 26 \\
   \hline
   \end{array}
   \]

3. **Calculate the average rate of change for each linear function using the formula. Show your work.**

   a.
   \[
   \begin{array}{|c|c|}
   \hline
   x & f(x) \\
   \hline
   3 & -4 \\
   7 & 4 \\
   9 & 8 \\
   12 & 14 \\
   \hline
Transcribed Image Text:## Practice 1. **Rakesha claims that the equation \( f(n) = 5n - 7 \) is the function notation for the sequence that is represented by the explicit formula \( a_n = -2 + 5(n - 1) \). James doesn’t understand how this can be the case.** a. **Help James by listing the steps to write the explicit formula of the given sequence in function notation. Provide a rationale for each step.** b. **Graph the function. Label the first 5 values of the sequence on the graph.** 2. **Determine whether each table of values represents a linear function. For those that represent linear functions, write the function. For those that do not, explain why not.** a. \[ \begin{array}{|c|c|} \hline x & f(x) \\ \hline 3 & 14 \\ 4 & 18 \\ 5 & 23 \\ 6 & 29 \\ \hline \end{array} \] b. \[ \begin{array}{|c|c|} \hline x & f(x) \\ \hline 0 & 2 \\ 1 & -1 \\ 2 & -4 \\ 3 & -7 \\ \hline \end{array} \] c. \[ \begin{array}{|c|c|} \hline x & f(x) \\ \hline 1 & 11 \\ 2 & 16 \\ 3 & 21 \\ 4 & 26 \\ \hline \end{array} \] 3. **Calculate the average rate of change for each linear function using the formula. Show your work.** a. \[ \begin{array}{|c|c|} \hline x & f(x) \\ \hline 3 & -4 \\ 7 & 4 \\ 9 & 8 \\ 12 & 14 \\ \hline
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