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Dx=(-1*-3)-(a*-12)
Dy=(-1*b)-(1*12)
D=(2*2)-(1*-3)
D=7
Dx=3+12a
Dy=-b-12
since x=3,y=2
=>7*3=3+12a
=> 21-3=12a
=> 12a=18
a=12/18
a= 2/3 Ans.
=>7*2=-12-b
14+12=-b
-b=26
b=-26 Ans.
Hope this answee helps you
Dy=(-1*b)-(1*12)
D=(2*2)-(1*-3)
D=7
Dx=3+12a
Dy=-b-12
since x=3,y=2
=>7*3=3+12a
=> 21-3=12a
=> 12a=18
a=12/18
a= 2/3 Ans.
=>7*2=-12-b
14+12=-b
-b=26
b=-26 Ans.
Hope this answee helps you
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