Mathematics | Course : Model Algebra I (Traditional Pathway)
Domain - Reasoning with Equations and Inequalities
Cluster - Solve equations and inequalities in one variable.
[AI.A-REI.B.3] - Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters.
- Coefficient
Any of the factors of a product considered in relation to a specific factor. - Linear equation
Any equation that can be written in the form Ax + By + C = 0 where A and B cannot both be 0. The graph of such an equation is a line. - Variable
A quantity that can change or that may take on different values. Refers to the letter or symbol representing such a quantity in an expression, equation, inequality, or matrix. - Reasoning With Equations
[AI.A-CED.A.1] -
Create equations and inequalities in one variable and use them to solve problems. (Include equations arising from linear, quadratic, and exponential functions with integer exponents.)*
[AI.A-CED.A.4] -
Rearrange formulas to highlight a quantity of interest using the same reasoning as in solving equations (Properties of equality).* For example, rearrange Ohm’s law R=V2/P to solve for voltage, V. Manipulate variables in formulas used in financial contexts such as for simple interest, I=Prt.
[AI.A-REI.A.1] -
Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify or refute a solution method.
[AI.F-BF.B.4.a] -
Solve an equation of the form f(x) = c for a linear function f that has an inverse and write an expression for the inverse.