Question

What is the line of symmetry for the parabola whose equation is y = x2 - 12x + 7?

Answer 1

Answer:

x = 6

Step-by-step explanation:

Please write this as  y = x^2 - 12x + 7 to indicate the exponentiation.

The coefficients of these three terms are a, b and c:  1, -12 and 7.

The equation of the axis (line) of symmetry is

        -b           -(-12)

x = ---------  =  -----------  = 6

         2a           2(1)