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Verified answer
Y = 4x - 8 ... (i)y = x² - 2x ... (ii)
Subtitusikan (i) dgn (ii)
4x - 8 = x² - 2x
x² - 6x + 8 = 0
(x - 4)(x - 2) = 0
x = 4 atau x = 2
Untuk x = 4
y = x² - 2x
y = 4² - 2(4)
y = 8
Untuk x = 2
y = x² - 2x
y = 2² - 2(2)
y = 0
HP : {(2 , 0) ; (4 , 8)}