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1.3 Solving Equations 1.5 Solving Inequalities Algebra II w/ trig.

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1 1.3 Solving Equations 1.5 Solving Inequalities Algebra II w/ trig

2 Equations: a statement that states two expressions are equal Variable: a symbol that represents many different numbers in a set of numbers (an unknown) Literal equation: an equation that contains two or more variables.

3 A. Write an algebraic expression to represent each verbal expression more than a number 2. six times the cube of a number 3. the square of a number decreased by the product of 5 and the number 4. twice the difference of a number and 6

4 B. Write a verbal sentence to represent each equation = y – 2 = 19 3.

5 C. Properties of Equality/Property of Inequalities: Whatever you do to one side of an equation, you MUST do to the other side.

6 Steps for solving equation/inequality: 1.Simplifying either side of an equation. 2.Add/subtract each side of an equation. 3.Multiply/divide each side of an equation. 4.Check your solution/ Graph answer for inequality.

7 Inequalities: Graphing Less than open circle Less than or equal to ≤closed circle Greater than or equal to ≥closed circle Not equal to ≠ open circle on the number

8 D. Solve 1.2.

9 3.4.

10 5., solve for h 6., solve for h

11 E. Solve and Graph 1. y 2.

12 3.


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