Question How many terms are there in the following finite arithmetic sequence?
22, 16, 10, ..., -110

Step-by-step explanation:

23 terms.

22,16,10,4,-2,-8,-14,-20,-26,-32,-38,-44,-50,-56,-62,-68,-74,-80,-86,-92,-98,-104,-110

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)