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y = 2x^2-3x+2 = 2(1)^2 -3(1) + 2 = 1
(1,1)
y' = 4x-3
y'=m = 4(1)-3 = 1
y-y1 = m(x-x1)
y-1= 1(x-1)
y-1 = x-1
x-y = 0 atau y=x
y = 2x²-3x+2
y = 2-3+2
y = 1
sehingga terbentuk titik (1,1)
jadi persamaannya,,,,,,,,,
y-b = m(x-a)
y-1 = 1(x-1)
y-1 = x-1
y = x