The formula is an illustration of Excel formulas, and Excel formulas are used to operate on values in a cell or a range of cells
From the complete question, the formula in cell I6 is a VLOOKUP formula, and the VLOOKUP formula is:
VLOOKUP(I5,A17:G20,9,1)
When copied from cell I6 through cell I11, the corresponding formulas in the cells would be:
I7 = VLOOKUP(I6,A17:G20,9,1)
I8 = VLOOKUP(I7,A17:G20,9,1)
I9 = VLOOKUP(I8,A17:G20,9,1)
I10 = VLOOKUP(I9,A17:G20,9,1)
I11 = VLOOKUP(I10,A17:G20,9,1)
Read more about Excel formulas at:
https://brainly.com/question/17566733