Question

Tolong bantu jawab soal yang no.3
Please, Thx!

Answer 1

M=-1/2 melalui (2,-3)
-3=(-1/2).2+c
c=-3+1
c=-2
y=(-1/2)x-2
5=(-1/2)a-2
(-1/2)a=5+2
a=7×(-2)
a=-14

b=(-1/2).-1-2
b=(-3/2)-2
b=-7/2
a+b=-14+(-7/2)
=(-28/2)-(7/2)
=-35/2