SOLUTION: I need some help on this one. I am not sure it is in the right area. Graph each quadratic function: f(x) = 1/2x^2 - 2 Then of course has to be graphed. Thanks for yo

Algebra ->  Functions -> SOLUTION: I need some help on this one. I am not sure it is in the right area. Graph each quadratic function: f(x) = 1/2x^2 - 2 Then of course has to be graphed. Thanks for yo      Log On


   



Question 62155This question is from textbook college algebra
: I need some help on this one. I am not sure it is in the right area.
Graph each quadratic function:
f(x) = 1/2x^2 - 2

Then of course has to be graphed. Thanks for your help.
This question is from textbook college algebra

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Graph each quadratic function:
f(x) = 1/2x^2 - 2
:
y = .5x^2 - 2
:
Substitute values for x and find y, I did a few of them for you.
an example; when x = -4
y = .5(-4^2) -2
y = .5(16)
y = 8 - 2
y = +6
:
x | y
-------
-4 |+6
-3 |+2.5
-2 |____
-1 |____
0 |____
+1 |____
+2 | 0
+3 |+2.5
+4 |_____
:
Complete this table and plot these x,y points on a graph
it should look like this:
+graph%28+300%2C+200%2C+-6%2C+6%2C+-4%2C+6%2C+.5x%5E2+-+2%29+
:
do you understand this now?