In the table, $$ f(x) $$ is a linear function. What is the value of $$ k $$ ?
```katex
\begin{array}{|l|l|} \hline
x&f(x) \ \hline
0&-4 \ \hline
1&-1 \ \hline
2&2 \ \hline
3&k \ \hline
4&8 \ \hline
\end{array}
```

Question

In the table, $$ f(x) $$ is a linear function. What is the value of $$ k $$ ?
```katex
\begin{array}{|l|l|}  \hline 
x&f(x) \ \hline  
0&-4 \ \hline  
1&-1 \ \hline  
2&2 \ \hline  
3&k \ \hline  
4&8 \ \hline  
\end{array}
```

Uniteasy Admin · Accepted Answer

From the data in the table, it’s observed that $$f(x)$$ is actually an arithmetic sequence with common difference 3
So when $$x=3$$, $$f(x) =5$$

Multiple Choice Question (MCQ)

Answer