### Algebra 2 PARCC: imaginary number arithmetic

Doing arithmetic with imaginary numbers involving *i*, the square root of –1, is an algebra 2 skill and might be tested on PARCC.

Doing arithmetic with imaginary numbers involving *i*, the square root of –1, is an algebra 2 skill and might be tested on PARCC.

Finding the rate of change of a function (from a graph, table, or function) can be required on the PARCC algebra 2 test.

Graphing parabolas is expected on the PARCC algebra 1 test (and in many algebra classes). Can you graph a quadratic function?

When it comes to constraints on real-world systems, nothing does the trick like linear algebra. Here, a factory makes and packages salsa.

Multiplying binomials is a skill with many applications. With PARCC, it can be tested by asking students to find the quotient of 2 binomials.

We sometimes need to develop mathematical models for costs we incur in our jobs or in daily life. Here’s one way to do just that.

Creating 2 equations in 2 unknowns to describe a set of conditions is a skill algebra 1 students need if they’ll be taking the PARCC test this spring.

How would you figure out (and explain) when one car, traveling at a given speed, will overtake another car that had a head start?

Adding, multiplying, & subtracting polynomials is tested, quite thoroughly, on the PARCC algebra 1 test, used in Md. and some middle schools in IL.

Solving equations for a variable of interest is required in algebra 1 on the PARCC test (and in the Common Core). Students find the radius of a circular pool.