How to straighten out multiple selected edges to one axis? I was just wondering if there was a way to get all selected edges completely straight. For example how to get something like this 

so that the edges circled in red are all completely straight along the X axis, like all the edges turn into one straight line.

Thanks
I missed the last vertex but anyway.

Just select all the vertices and then hit S to scale then tap the direction you want to scale. In my case Y. Then tap  0 on the number pad.