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2007. f(x) = x 2 -7 f ’( x) = 2x So the ’lutning’ is given by 2x. So f’(x) = 2.-3 = -6. When x -3, y= x 2 – 7  y = 2 x =-3; y= 2, k= -6 y=kx + m  y-kx=m  m=2-(-6.-3) = -16 Y= -6X- 16. 2007.
                
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