1. Garis 2x+y=6 dicerminkan Sumbu Y 2. Garis x-2y=7 Di Translasi (3,-2) 3. Garis 2x+3y=4 dilatasi P ( 0,0 ), skala 2? Tolong di Jawab Point Lumayan

Nmr 1
(x,y) Ref[sb.Y] (x',y') = (-x,y)
• x' = -x → x = -x'
• y' = y
maka,
2x+y=6
2(-x')+y' = 6
-2x'+y = 6

Nmr 2
(x,y) Trans[3 -2] (x',y') = (x+3, y-2)
• x' = x+3 → x = x'-3
• y' = y-2 → y = y'+2
maka,
x-2y = 7
(x'-3)-2(y'+2) = 7
x'-2y'-5 = 7
x'-2y' = 12

Nmr 3
(x,y) Dil.[(0,0), 2] (x',y') = ((2)x, (2)y)
• x' = 2x → x = ½x'
• y' = 2y → y = ½y'
maka,
2x+3y = 4
2(½x')+3(½y') = 4
x'+3/2y' = 4
2x'+3y' = 8