Posted by HELP on .
y = x − 4 + 8
Find the xcoordinate of the vertex of
the graph.
And the ycoordinate of the vertex of the graph.
Please help me, I'm stuck!

Math 
paul,
you have to put it into a vertex form
y=a(xh)^2 +k
y=x+4(because of sign )+8
now you have to get ^2
y=a(.5x2)^2+8
y=1(.5x2)^2+8
now k shifts up or down IE y axis
h shifts left or right IE x axis but a +h=h and a h=+h so your vertex would be (2,8) because h is 2 and k is 8