Question

Write the sum using summation notation, assuming the suggested pattern continues.

-4 + 5 + 14 + 23 + ... + 131

Answer 1

you are adding n*9 to the first term -4 each time.

Answer 2

ok so would it be infinity or 15

Answer 3

to find the max n do the following

n*9 -4 = 131

Answer 4

is that it??