An astronaut brought a $$-gram sample of goo from another planet to her laboratory.

When the goo is exposed to light, the amount of goo increases by the same percentage every hour.

x = -2

y = 848

step-by-step explanation:

plug in the numbers

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.