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# Pc sections p.4-p.5

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### Pc sections p.4-p.5

1. 1. Prerequisites Sections P.4 and P.5
2. 2. Slope of a Line  Slope of a non-vertical line  Slope of a vertical line  Slope of a horizontal line
3. 3. Forms of Equations of Lines  General Form Ax + By + C = 0  Standard Form Ax + By = C  Slope Intercept Form y = mx + b  Point-slope Form y – y1 = m(x – x1)  Vertical Line x = a  Horizontal Line y = b
4. 4. Forms of Quadratic Equations  General Form ax2 + bx + c = 0  Vertex Form a(x – h )2 + k = 0
5. 5. Parallel and Perpendicular Lines  Parallel  Perpendicular
6. 6. Graphing Linear Equations  Construct a table.  x-intercepts and y-intercepts  Slope and y–intercept  Graphing calculator  Recognizing vertical and horizontal lines
7. 7. Solving Linear Equations  Graphing the equation  Finding the x-intercept.
8. 8. Solving Quadratic Equations  Finding the x-intercepts.  Extracting square roots.  Completing the square.  Quadratic Formula
9. 9. Solving Equations by Finding Intersections Solve |2x – 1| = 6  Algebraically  Graphing
10. 10. Application  Sophie plans to invest 18,000,000w, putting part of the money x into a savings that pays 5% annually and the rest into an account that pays 8% annually.  What are the possible values of x.  If she wants to invests x dollars at 5%, write an equation that describes the total interest I received from both accounts at the end of the year.  How much must she invest at 5% to earn 1,020,000w in one year?
11. 11. Homework  Pages 36 – 37 #7-25 odd, 33, 35, 41, 45  Pages 46-47 #47-56 all, 59, 61
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