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Form 4 - Quadratic Functions and Equations 05 :
The quadratic function f(x) = - x2 + 4x - 3 can be expressed in the form of,
f(x) = -( x – 2)2 + k , where k is constant.
(a) find the value of k.
(b) sketch the graph of the function f(x) on the given axes.
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