The first two terms of a sequence are 4 and 12. If the sequence is arithmetic, what is the next term? If the sequence is geometric, what is the next term?

Step-by-step explanation:

Case 1:  20; Case 2:  36

Case 1:  arithmetic sequence

The common difference is 8.  Notice that 4 + 8 = 12.

a(1) = 4; a(2) = 12; a(3) = 20; etc.

The common next term (3rd term) is 20.

Case 2:  geometric sequence

The common ratio is 3.  Notice that 4*3 = 12.

Multiplying this second term by the common ratio (3) results in the third term:  36.

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)