Question

Determine whether the sequence is arithmetic or geometric.

7, –35, 175, –875, . . .

geometric
arithmetic

Answer 1

geo

Answer 2

can u explain so I understand it please

Answer 3

ok,

Answer 4

the arithmetic is defined by the rule: the next term = the previous term + something
the geometric is defined by the rule: the next term = the previous term * something

Answer 5

To your problem, I take the second term and consider, it is -35, its previous term is 7, hence the so-called "something" is -5, and 7*(-5) = 35

Answer 6

Try one more, take -35 * (-5) again, it is 175,

Answer 7

do it again, you get the last term.
dat sit

Answer 8

oh ok I get it now thankyou so much for explaining it to me I really appreciate it

Answer 9

:)