FUNCTIONS J2

 

Find the axis of symmetry for F(x) = 4x² + 20x + 8

 

Solution

 

a=4, b=10

 

Axis of symmetry = -b/2a

 

                               =  -(20)

                                    2 x 4

 

                               =    -20

                                      8

 

 

Hence the axis of symmetry is -2.5

 

TRY THIS…………………

 

 

Find the axis of symmetry for F(x) = 6x² + 40x + 3