What does a # / Hashtag / pound sign actually mean in Social Media? The pound sign or hashtag is visually represented by the symbol â#â, and by placing the symbol in front of a word (or series of words) on a social network, it will turn that word into a metadata tag.
Note: You can't go through algebra without seeing quadratic functions. The graphs of quadratic functions are parabolas; they tend to look like a smile or a frown. In this tutorial, get introduced to quadratic functions, look at their graphs, and see some examples of quadratic functions!ou can't go through algebra without seeing quadratic functions. The graphs of quadratic functions are parabolas; they tend to look like a smile or a frown. In this tutorial, get introduced to quadratic functions, look at their graphs, and see some examples of quadratic functions!
let's take a look at the graph of a quadratic function, and define a few new vocabulary words that are associated with quadratics. 1  The graph of a quadratic function is called a parabola. 2  If the parabola opens up, the vertex is the lowest point. 3  If the parabola opens down, the vertex is the highest point.