1. Warm-Up Explain how you made each match (Without a calculator!)

2. Section P.1: Graphs and Models p.3 - 10

3. 4 Approaches to Mathematics: 1. Verbal – Explain in words 2. Numerical – Table of values 3. Graphical – Using graphs 4. Analytical – Manipulating symbols and equations

4. Sketch a graph of f(x) = 1 – x 2 Method 1: Make a table and plot points.

5. Sketch a graph of f(x) = 1 – x 2 Method 2: Using a graphing calculator.

6. Why not just always use a graphing calculator? Give the number of zeros of f(x) = sin(ln x)

7. Why not always just use a graphing calculator? Graph y =

8. Finding x and y-intercepts: x 2 y – x 2 + 4y = 0

9. Finding x and y-intercepts: y =

10. Symmetry: X-axis: Y-axis: Origin:

11. Check for symmetry: y = (x + 2) 2

12. Why does symmetry help? x – y 2 = 2

13. Find Points of Intersection and check: x 2 + y = 5 x – y = 1