The last one will give the incorrect slope

ANSWER: ? = -21
P/s: ? = x < let ? is x >
ok done. Thank to me :>
Xm=(2+2)/2=2
Ym=(1+4)/2=2.5
(2,2.5)
The correct answer is the last option
In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics. It includes everything from elementary equation solving to the study of abstractions such as groups, rings, and fields.