ANSWER
Vertex: (6, 8)
Axis of symmetry: x = 6
Minimum value: y = 8
Step-by-step explanation
The x-value of the vertex of a quadratic function with standard form:

is:

In this function a = 1 and b = -12. The x-value of the vertex is:

To find the y-value of the vertex we have to replace x by xv in the function and solve:

So the vertex is (6, 8)
The axis of symmetry is a vertical line that passes through the vertex, so it's x = 6.
This function has a minimum value, because a > 0 (positive) so the branches of the parabola go upwards. Therefore, the vertex is the minimum value of the function: y = 8