Question

The function g(n) = n2 − 16n + 69 represents a parabola.

Answer 1

Hello : 
g(n) = n2 − 16n + 69
       =( n²-16n+64)-64 +69.....( completing the square)
g(n) = (n-8)² +5...... (the vertex form)
the vertex is : (8,5)
the axis of symmetry is the line : n = 1