High School: Number and Quantity
HSN.VM.B4b
Given two vectors in magnitude and direction form, determine the magnitude and direction of their sum.
October 1, 2018HSN.CN.B6
(+) Calculate the distance between numbers in the complex plane as the modulus of the difference, and the midpoint of a segment as the average of the numbers at its endpoints.
October 1, 2018HSN.VM.B4c
Understand vector subtraction v – w as v + (-w), where -w is the additive inverse of w, with the same magnitude as w and pointing in the opposite direction. Represent vector subtraction graphically by connecting the tips in the appropriate order, and perform vector subtraction component-wise.
October 1, 2018HSN.CN.C7
Solve quadratic equations with real coefficients that have complex solutions.
October 1, 2018HSN.CN.C8
(+) Extend polynomial identities to the complex numbers. For example, rewrite x² + 4 as (x + 2i)(x – 2i).
October 1, 2018HSN.CN.A1
Know there is a complex number i such that i² = -1, and every complex number has the form a + bi with a and b real.
October 1, 2018HSN.CN.A2
Use the relation i² = -1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers.
October 1, 2018