Tuesday, 14 January 2014

FUNCTIONS B6

Find the axis of symmetry for F(x) = 7x2 - 98x + 3

Solution

a=7, b=-98

Axis of symmetry = -b/2a

                               =  -(-98)
                                    2 x 7

                               =    98
                                     14

                               =    7
                                      

Hence the axis of symmetry is 7


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