This is a student-centered discovery activity (or warm-up) to introduce transformations in quadratic, absolute value, cubic, square root, and cubed root functions. Using Desmos, students will determine what the role of a, h, and k are for a quadratic function. I put a chart on the front page where the teacher can write the generic function f(x) = a (x - h) + k in the middle and then describe what a, h, and k do in the boxes above the middle one.