Learn how to write the explicit formula given a sequence of numbers

The video tutorial explores the process of writing a mathematical formula by testing various operations such as addition, subtraction, and multiplication. The teacher demonstrates how to determine the correct formula by plugging in different values and checking the results. Through trial and error, the correct formula is identified, showcasing the importance of logical reasoning and pattern recognition in mathematics.

What was the initial formula tested by the teacher for the first term?

• N + 3

• 2 * N + 2

• N + 1

• 5 - N

Why did the subtraction method 5 - N fail for the second term?

• It resulted in a negative number

• It did not match the expected result

• It was too complex

• It worked perfectly

Which multiplication formula was initially considered but found ineffective?

• 5 - N

• N + 3

• 2 * N + 2

• 3N + 1

What was the successful formula discovered by the teacher?

• N + 3

• 2 * N + 2

• 3N + 1

• 5 - N

How did the teacher verify the correctness of the final formula?

• By checking it against multiple terms

• By using a calculator

• By asking students

• By guessing