# Complete the square to find the vertex of each quadratic function

###### Question:

Complete the square to find the vertex of each quadratic function. State the vertex. (10 marks)
A) f(x) = x2 + 8x – 3
B) f(x) = x2 – 5x + 8
C) f(x) = 2x2 – 12x + 1
D) f(x) = 3x2 + 2x – 5

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