Mr. Jones filled his swimming pool with water. •

Mr. Jones filled his swimming pool with water.

• Mr. Jones began filling the pool at a constant rate.
•He turned off the water for a while
•He then turned the water back on at a slower constant rate.
•Mr. Jones turned off the water again for a while.
•He then turned the water back on at the first rate.
Which graph best represents Mr. Jones filling the pool?​

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

your answer is

a.

5

step-by-step explanation: