Question

Tolong di jawab no.6,7!! please

Answer 1

6.m=y2-y1/x2-x1
2=3+9/2a-5a
2=12/-3a
*Coret 2 dan 12*
3a=16
a=2

7.m=y2-y1/x2-x1
-3=5b-7/-11-3b
-3(-11-3b)=5b-7
33+9b=5b-7
9b-5b=-33-7
4b=-40
b=-10