1. Prerequisites
Sections P.4 and P.5

2. Slope of a Line
 Slope of a non-vertical line
 Slope of a vertical line
 Slope of a horizontal line

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. Forms of Quadratic Equations
 General Form
ax2 + bx + c = 0
 Vertex Form
a(x – h )2 + k = 0

5. Parallel and Perpendicular Lines
 Parallel  Perpendicular

6. Graphing Linear Equations
 Construct a table.
 x-intercepts and y-intercepts
 Slope and y–intercept
 Graphing calculator
 Recognizing vertical and horizontal lines

7. Solving Linear Equations
 Graphing the equation
 Finding the x-intercept.

8. Solving Quadratic Equations
 Finding the x-intercepts.
 Extracting square roots.
 Completing the square.
 Quadratic Formula

9. Solving Equations by Finding
Intersections
Solve |2x – 1| = 6
 Algebraically  Graphing

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. Homework
 Pages 36 – 37
#7-25 odd, 33, 35, 41, 45
 Pages 46-47
#47-56 all, 59, 61