Well after some messing around with the nodes I figured out my request by accident, and also learned I do not need to click many times trying to create a simple curve.
So I created a curve with 3 points that looked like this. 12" width and 2" height.
Then I used the edit nodes tool, right clicked on the top node at the point, and selected toggle smooth or (S).
I clicked on the adjustment bar and dragged it horizontally which makes it longer and the curve started to come into form.
I can now adjust the center point for height and also the length of the adjustment bar to change shape and size of the curve. It only took me 3 years to figure that out. Figured I would include snips in case someone else comes across this but my request has been satisfied.