# How do you find the y intercept, the equation of the axis of symmetry and the x-coodinate of the vertex #f(x)= x^2 - 10x + 5#?

##### 1 Answer

Apr 22, 2015

y-intercept is 5, Axis of symmetry is x=5, x-coordinate of vertex is 5.

To find the axis of symmetry, and the coordinates of the vertex, this quadratic function need be put in its standard form (parabola):

y=

=

=

y+20=

Compare this with the standard form of a vertical parabola y-k =

The vertex is therefore (5, -20) and axis of symmetry is x=5