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(y-yA)(xB-xA)-(x-xA)(yB-yA)=0
(y-0)(4-(-8))-(x-(-8))(9-0)=0
12y-9(x+8)=0
-9x+12y-72=0
-3x+4y-24=0
2.
y=a(x-xp)+yp
y=√2(x-0)+1
y=√2x+1