\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
For the quadratic function \(f(x) = 2(x-1)(x-5)\), state the following:
  1. The direction of opening (concavity).
  2. The coordinates of the x-intercepts.
  3. The equation of the axis of symmetry.
  4. The coordinates of the vertex.

Capture an image of your work. AI teacher feedback takes approximately 10 seconds.