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  1. Given that y = 7 + 3x − x2, complete the table below. (2mks)
     x  −3  −2  −1  0  1  2  3  4  5    6 
     y −11    7      −11
  2. On the grid provided and using a suitable scale draw the graph of
    y = 7 + 3x − x2
  3. On the same grid draw the straight line and use your graph to solve the equation
    x2 - 4x – 3 = 0. 
  4. Determine the coordinates of the turning point of the curve. 

1 Answer

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  1.  
     x  −3  −2  −1  0  1  2  3  4   5    6 
     y −11  −3  3 7 9 9 7 3 −3  −11

  2. Using suitable scale to draw graph
  3. y=7+3x−x2
    0= −3−4x+x2
    ∴ 
     x  0  2 
     y 4 2
  4. (1.5, 9.8)
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