What is the missing term in the factorization?

Pranza plotted point a in the coordinate plane below.

Can some one explain this i got sent this. is this a threat i’m scared

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant.given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.