Question

Find the equation of the axis of symmetry for this function. f(x) = x2 - 12x + 7

Answer 1

The equation for the line of symmetry goes thus:

`x=(-b)/(2a)`

where a = coefficient of x^2 = 1

b = coefficient of x = -12

`x=\frac{-(-12)_{}}{2*1}=\text{ }(12)/(2)=6`

Thus the equation is x = 6