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!
But we'll start with solving by factoring. You should already know how to factor quadratics. (If not, review Factoring Quadratics .) The new thing here is that the quadratic is part of an equation, and you're told to solve for the values of x that make the equation true. Here's how it works: 1  Solve (x â 3)(x â 4) = 0.his equation is not in (quadratic) equals (zero) form, so I can't try to solve it yet. The first thing I need to do is get all the terms over on one side, with zero on the other side. Only then can I factor and solve: x2 â 3 = 2x x2 â 2x â 3 = 0 (x â 3)(x + 1) = 0 x â 3 = 0 or x + 1 = 0 x = 3 or x = â1.