Section 2.1 Intercepts; Symmetry; Graphing Key Equations

1. Section 2.1Intercepts; Symmetry; Graphing Key Equations

4. Find the x-intercept(s) and the y-intercept(s) of the graph of then graph by plotting points. To find the x-intercept(s), let y = 0. To find the y-intercept(s), let x = 0.

5. Now find and plot some points.

6. Try This: Find the intercepts and graph the equation by plotting points.

9. If a graph is symmetric with respect to the x-axis and the point (3,2) is on the graph, what other point is also on the graph? (3,2) (3,–2)

11. If a graph is symmetric with respect to the y-axis and the point (3,2) is on the graph, what other point is also on the graph? (3,2) (–3,2)

13. If a graph is symmetric with respect to the origin and the point (3,2) is on the graph, what other point is also on the graph? (3,2) (–3, –2)

16. x-Axis: Not equivalent so not symmetric with respect to the x-axis. IS equivalent so symmetric with respect to the y-axis. y-Axis: Not equivalent so not symmetric with respect to the origin. Origin:

24. Try this: List the intercepts and test for symmetry.

25. Homework • P. 170 # 15 – 60 (x5)