What is the axis of symmetry and vertex for the graph #y = x^2 +10x-11#?

Question

2349 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-18T17:42:35

Axis of Symmetry: -5
Vertex: -5, -36

#y=x^2+10x-11#
#x^2=a# (#x^2=1^2=1#)
#10x=b#
#-11=c#

#(-b)/(2a)#

#(-10)/(2*1)#

#=(-10)/2#

#=-5#

enter image source here

Sorry kind of sloppy.
Plug in the axis of symmetry #(x)# and you will get #-36#.
(#-5, -36)# would be that coordinates and the vertex of the graph.