AXIS OF SYMMETRY

Find the axis of symmetry for F(x) = 7x² - 8x + 9.

Solution

a=7, b=-4

Axis of symmetry = -b/2a

                             =  -(-8)

                                2 x 7

                            =    8

                                14

                            =     4

                                   7

Hence the axis of symmetry is ⁴/7

TRY THIS…………

Find the axis of symmetry for F(x) = 9x² - 10x + 7