How do you sketch the graph of #y=-1/2x^2# and describe the transformation?

1 Answer
Jul 10, 2018

Below

Explanation:

If you have a NEGATIVE sign, you will flip the equation over the X-AXIS.

Depending on the number in front of your equation, your graph will become either narrower or wider. Since you have a #1/2#, your graph will be wider

Below is #y=x^2# graph{x^2 [-10, 10, -5, 5]}

Now, below is your #y=1/2x^2# Notice that your graph is wider than #y=x^2# graph{1/2x^2 [-10, 10, -5, 5]}

Finally, below is your #y=-1/2x^2# Notice that this is simply your #y=1/2x^2# flipped on its x-axis. graph{-1/2x^2 [-10, 10, -5, 5]}