Question

Find the axis of symmetry f(x) = 2x2 - 4x.

Answer 1

x=1

Explanation:

The function graph is a parabola (branches pointing up). Vertex (1; -2). The graph is symmetrical about the x axis = 1

`f(x)=2x^(2) -4x \\x_(0) =-b/2a=-(-4)/(2*2)=1\\f(1)=-2\\`