# Heart of Algebra

Heart of Algebra focuses on linear equations, systems of linear equations, and functions. These questions ask you to create equations that represent a situation, solve equations and systems of equations, and make connections between different representations of linear relationships.

Heart of Algebra includes the following types of questions:

• Create, solve, or interpret a linear expression or equation in 1 variable.

• Create, solve, or interpret linear inequalities in 1 variable.

• Build a linear function that models a linear relationship between 2 quantities.

• Create, solve, and interpret systems of linear inequalities in 2 variables.

• Create, solve, and interpret systems of 2 linear equations in 2 variables.

• Algebraically solve linear equations (or inequalities) in 1 variable.

• Algebraically solve systems of 2 linear equations in 2 variables.

• Interpret the variables and constants in expressions for linear functions.

• Understand connections between algebraic and graphical representations.

For tutorials and practice questions of all these types, go to Official SAT Practice on Khan Academy at satpractice.org.