Consider this quadratic function #f(x)=2x^2-8x+1#, how do you find the axis of symmetry?

1 Answer
Nov 12, 2016

The equation of the axis of symmetry for #f(x) = 2x ^2 - 8x + 1# is #x = 2#.

Explanation:

This quadratic function is in standard form, #f(x) = ax^2 + bx + c#.
For every quadratic function in standard form the axis of symmetry is given by the formula #x = (-b)/(2a)#.

In #f(x) = 2x^2 - 8x + 1#, #a = 2#, #b = -8#, and #c = 1#. So, the equation for the axis of symmetry is given by

#x = (-(-8))/(2*2)#

#x = 8/4#

#x = 2#