Question

On a table if 1 is 1, 2 is 3, 3 is 7, 4 is 15, 5 is 31, what is the equation?

Answer 1

are there any answer choices

Answer 2

what are the first and second differences? if the first differences are constant, the function is linear.
if the second difference is constant then the function is quadratic.

Answer 3

(2^n)-1

Answer 4

(2^1)-1,(2^2)-1,(2^3)-1,.....

Answer 5

@arowe99

Answer 6

What does ^ mean?

Answer 7

raised to the power

Answer 8

@arowe99 do you get it?

Answer 9

not really.

Answer 10

ok now check the attachment. @arowe99