Each Interior Angle = 180° - (360 / sides)
144 = 180 - (360 / sides)
(360 / sides) = 36
sides = 360 / 36
sides = 10
It is a decagon.
Source:
http://www.1728.org/polygon.htm
I’m not 100% sure but i think ur answer rn is correct don’t check the second box
2(2,1)(14,10)
(4,2) - (14,10)= (-10, -8)
The coordinates of K are (-10, -8).
The equation would be 2x+3 so when you plug it in it's 2(-2)+3 which simplify to -4+3 which is -1