How to define and identify vertical angles.
Equations and slopes of horizontal and vertical lines
How to use one-sided limits to find a vertical asymptote.
How to talk about hyperbolas.
How to graph parabolas with horizontal and vertical shifts without making a table of values.
How to find the vertical asymptotes of secant, cosecant, and cotangent.
How to find the x-intercepts and vertical asymptotes of the graph of y = tan(q).
All about ellipses.
How to understand basic transformations of a polynomial graph.
Adding or subtracting decimals by vertically lining up the zeros
Adding and subtracting polynomials with pictures or aligning vertically
How to determine the number of diagonals in a polygon.
How to graph the special cases of the family r = a + b cos (theta) when a or b = 0.
How to graph the transformation y = a f(x) + k when f(x) = abs(x).