Hi Folks! Let A be the space of splines of degree one that have only one interior knot, at the point x = 0. Or in other words: A is the 3 dimensional space of linear polynomials on [-1,1] that consists for straight line segments joined at x = 0. How exactly do I visualize this space? The problem I'm working on assumes that I have run into splines before, but as a matter of fact I haven't. I have tried looking online for examples but not been able to find one. Can anyone give me some pointers on how for example to find the basis for this space but also how a typical element of this space looks (since it's degree is one I assume that it is of the form p(x)=a+b*x). Thank you in advance!