SOLUTION: 17. I need help graphing the following and listing the directions,vertex,axis of symmetry,table with 5 points and the graph for this equation. f(x)=-1/2x^2

Algebra ->  Equations -> SOLUTION: 17. I need help graphing the following and listing the directions,vertex,axis of symmetry,table with 5 points and the graph for this equation. f(x)=-1/2x^2      Log On


   

Question 1157010: 17.
I need help graphing the following and listing the directions,vertex,axis of symmetry,table with 5 points and the graph for this equation.
f(x)=-1/2x^2
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
------------------
f(x)=-(1/2)x^2
------------------

Vertex is maximum point, at (0,0).
x=0, the symmetry axis.

4p=-1%2F2
p=-1%2F8
Directrix is above the vertex point, by 1%2F8 units.
Directrix is y=1%2F8.