5y - 2x = 10
a. y = x
(x,y) → (y,x)
Maka
5x - 2y = 10
-2y = -5x + 10
y = -5/-2 x + 10/-2
y = 5/2x - 5
b. y = -x
x' = -y
y' = -x
5(-y') - 2(-x') = 10
-5y' + 2x' = 10
-5y' = -2x' + 10
y' = -2/-5 x' + 10/5
y' = 2/5 x' + 2
Hasil pencerminan
y = 2/5x + 2
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5y - 2x = 10
a. y = x
(x,y) → (y,x)
Maka
5x - 2y = 10
-2y = -5x + 10
y = -5/-2 x + 10/-2
y = 5/2x - 5
b. y = -x
x' = -y
y' = -x
5x - 2y = 10
5(-y') - 2(-x') = 10
-5y' + 2x' = 10
-5y' = -2x' + 10
y' = -2/-5 x' + 10/5
y' = 2/5 x' + 2
Hasil pencerminan
y = 2/5x + 2