What is the answer to this question plss and you

A defines the function

f(1) = - 8 ×( = - 8 × 1 = -8

f(2) = - 8 ×( = - = - 20

f(3) = - 8 ×( = - 8 × = - 50

f(4)= - 8 ×( = - 8 × = -125

f(5) = - 8 ×( = - 8 × = -

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents