Solve Percent Problems. Section 3.7. Vocabulary. Ratio Uses division to compare two quantities. These ratios can be expressed in several different ways. They include:. Subtraction Property Subtracting the same number to each side of an equation produces an equivalent equation
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Graphs & Models (P1). September 5th, 2012. I. The Graph of an Equation. Ex. 1 : Sketch the graph of y = (x - 1) 2 - 3. You try: Sketch the graph of a. y = (x + 3) 2 + 4 b. y = (x - 2) 2 - 1 c. y = -(x + 1) 2 + 3. Ex. 2 : Use a graphing utility to graph each equation.
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Solving Linear Systems of Equations - Addition Method. Recall that to solve the linear system of equations in two variables . we need to find the value of x and y that satisfies both equations. In this presentation the Addition Method will be demonstrated. Example 1:.
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What is Precalculus?. Precalculus is the preparation for Calculus. Calculus is the mathematics of change: Velocity and Acceleration.
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Chapter 2 Section 1. Solving Equations. Equations. Decide which are Equations and which are Expressions. Solution of an Equation. To determine if a value is a solution, we simply substitute the value for the variable in the equation and see if the result is a true statement. Your Turn.
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What is Calculus?. Calculus is the mathematics of change: Velocity and Acceleration.
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Solving Radical Equations. 10.6. A radical equation is an equation in which the variable appears in a radicand. Examples are. The Principle of Powers If a = b , then a n = b n for any exponent n . . Check:. TRUE. Example. Solve:. Solution. Isolate the radical.
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2.1 solving 1-step equations. I can solve one-step equations in one variable. Equivalent Equations. Equations that have the same solutions. In order to solve a one-step equation, you can use the properties of equality and inverse operations. Addition and subtraction properties of equality.
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PRECALCULUS I. Graphs and Lines Intercepts, symmetry, circles Slope, equations, parallel, perpendicular. Dr. Claude S. Moore Danville Community College. Graph of an Equation. Equation - equality of two quantities.
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