Nomor 33, sekalian cara kerjanya ya..

2x + 3y + 1 = 0 dilatasi [0,3]
|x'| = |3 0| |x|
|y'| = |0 3| |y|

det = 9 - 0 = 9

|x| = 1/  |3 0| |x'|
|y| = det |0 3| |y'|

|x| = 1/  |3 0| |x'|
|y| = 9   |0 3| |y'|

|x| = |1/3   0| |x'|
|y| = |0   1/3| |y'|

|x| = |1/3x'|
|y| = |1/3y'|

x = 1/3x'
y = 1/3y'

2x + 3y + 1 = 0 dilatasi [0,3]
masukan x y dengan x' y'
2(1/3x) + 3(1/3y) + 1 = 0
2/3x + y + 1 = 0 (kali 3)
2x + 3y + 3 = 0

2x + 3y + 3 = 0 dicerminkan terhadap garis y=x
ganti y=x
2y +  3x + 3 = 0
3x + 2y + 3 = 0

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