Tuesday

October 6, 2015
Posted by **Nada** on Friday, July 23, 2010 at 5:47pm.

- Graphing -
**AlbertFalls**, Friday, July 23, 2010 at 10:56pmIt is a parabola U. See what happens with the y's when you use 0, +1, and -1 for the x's.

- Graphing -
**Henry**, Saturday, July 24, 2010 at 5:19pmY = (-2X)^2 = 4X^2.

1. Calculate coordinates of the vertex:

h = Xv = -b / 2a = o/8 = 0.

K = Yv = 4(0)^2 = 0. So the vertex is

at the origin. V(h.k) = (0 , 0).

2. Select values of X on both sides

of vertex and cal. the corresponding

value of Y using the given Eq.

(-2 , 16) , (-1 , 4) , (0 , 0) ,

(1 , 4) , (2 , 16).

The graph should show a Y-parabola

that opens upward with vertex at the

origin.