Question

Tell me if I am right

Find the vertex,line of symmetry,and the minumum/maximum value of the quadratic function

f(x)=7-x^2

vertex is (0,7)
line of symmetry is x=-7
maximum is 7

Answer 1

axis of symmetry is x=0 just like the x-coordinate of the vertex; otherwise good

Answer 2

Yes, I agree with Mando. Everything is good except, line of symmetry is x = 0

Answer 3

The solution I posted for the other one is also correct