Section 1-3 Equations.

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Presentation transcript:

Section 1-3 Equations

equation Mathematical sentence with an equal sign. It contains variable(s), number(s), and/or symbol(s). The sides of an equation are separated by an equal sign!

Examples side side side side

Open sentence An equation that contains variables

domain A given set of numbers that are to be substituted in for the variables

Solution set All members/solutions that make the equation true We use braces for set notation! Ø If no solution exists, we use { } or .

Steps to solve: Create a table Plug in values Simplify If it is true, it is a solution; If it is false, then it is not a solution