Question 111670
Graph the quadratic equation: {{{-x^2+4x+5}}}
{{{graph(600,400,-2,7,-2,10,-x^2+4x+5)}}}
From the graph:
1) The roots are: x = -1, x = 5
2) The function has a maximum.
3) The vertex is at (2, 9)
4) The equation of the axis (line) of symmetry is: x = 2