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Equations
Definition
| Question | Answer |
|---|---|
| Identities | An identity is an algebraic equality which is true whatever the value of letter involved is |
| Equation | Is an equality in which there is at least one letter that is called the unknown |
| The solution of the equation | Is the value or values of the unknown (or of the unknowns) that make the equation equal. |
| To solve an equation | Is to work out the solution, or solutions, or to arrive at conclusion that there isn´t a solution |
| Two equations are equivalent | if they have the same solutions or neither have a solution |
| First degree (linear) equations | In there x only appears to the power of 1. |
| Second degree equations | Involve at least one variable that is squared, or raised to a power of two. |
| Member | Each side of the equal sign is called a member |
| Operations | Addition, Subtraction, multiplication or division |
| Equal sign | ' = ' The equations always have equal signs |
| Variable | The variables refer to the unknown, you can use any letter |
| Coefficient | It is the number that is attached to the variable |
| Constant | They are the numbers that go alone without variable |
Created by:
Castroa
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