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2069

2069. y =2x 2 -6x+2 equation 1 Y’ = 4x – 6 equation 2 For secant , k = 4 Parallel lines have the same gradient so k= 4 for y=2x 2 -6x+2. y=2x 2 -6x+2 Y’ = 4x – 6 So 4 = 4x-6  x=2,5 From equation 1, y=2.(2,5) 2 -6.2,5 + 2 Y= -0,5; x=2,5;k=4

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2069

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  1. 2069 y=2x2-6x+2 equation 1 Y’ = 4x – 6 equation 2 For secant, k = 4 Parallellineshave the same gradient so k= 4 for y=2x2-6x+2. y=2x2-6x+2 Y’ = 4x – 6 So 4 = 4x-6  x=2,5 From equation 1, y=2.(2,5)2-6.2,5 + 2 Y= -0,5; x=2,5;k=4 Y-kx=m m=-0,5 – 4.2,5  m= -10,5 Answer: Y=4x-10,5

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