How to calculate and interpret the discriminant of a quadratic equation.
How to write a function to describe a table of values.
How to write an equation to describe a set of pictures.
How to graph the reciprocal of a linear function.
Short, helpful video on ACT Geometry by top ACT prep instructor, Devorah. Videos are produced by leading online education provider, Brightstorm.
How to tell if two variables vary directly.
How to prove that an angle inscribed in a semicircle is a right angle; how to solve for arcs and angles formed by a chord drawn to a point of tangency.
How to identify the graph of a stretched cosine curve.
How to determine what form an equation is written in.
How to calculate the measure of an inscribed angle.
How to define a secant; how to find the length of various secants in circles.
How to derive the formula to calculate the area of a sector in a circle.
How to determine if two triangles in a circle are similar and how to prove that three similar triangles exist in a right triangle with an altitude.
How to talk about the rectangular coordinate system.
How to graph y = tan(q) for one or more periods.