Multiple Choice Question (MCQ)

In the table, f(x) is a linear function. What is the value of k ?


\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}


  1. ×

    2

  2. ×

    3

  3. ×

    4

  4. 5

  5. ×

    6

Collected in the board: Function

Steven Zheng posted 3 months ago


Answer

  1. 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

Steven Zheng posted 1 month ago

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