Question

PLEASE HELP!!

The table shows the predicted growth of a particular bacterium after various numbers of hours.
Write an explicit formula for the sequence of the number of bacterium.

Answer 1

The first answer, a(n) = 21n

Answer 2

`a_n=21n`

Explanation:

Which formula from the answer choices makes ALL the values given in the table to be TRUE?

Checking first formula:

• 21*1=21
• 21*2=42
• 21*3=63
• 21*4=84
• 21*5=105

So, all the values work for the first formula, hence the first answer choice is correct.