video1.0<iframe src="https://www.loom.com/embed/8d80a15e03974d7393894ae8ac9f14fc" frameborder="0" width="1920" height="1440" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>14401920Loomhttps://www.loom.com14401920https://cdn.loom.com/sessions/thumbnails/8d80a15e03974d7393894ae8ac9f14fc-a2bd508677951c92.gif248.68In this Loom I explain what a limit is in calculus. I show that the limit is the y value a function approaches as x gets infinitely close to a point, like x approaching 2 for f(x) = x^2 minus 4, which gives a limit of 0. I also cover cases where the function is undefined, such as f(x) = (x^2 minus 4)/(x minus 2) with a hole at x = 2, where the limit still exists and equals 4. Finally, I explain that the limit exists only if the left-hand and right-hand limits match, illustrated by an absolute value graph where they are -1 and 1, so the limit does not exist.