1. Graph the following
Y = 4 X = 3 Y = -5x + 2 6x + 3y = 9

2. Today’s Objectives By the end of class today, you will be able:
to find the x- and y-intercepts of a graph when given a linear equation.
To use intercepts in order to graph a linear equation

3. Chapter 8.3 day 1
Vocabulary: x-intercept: the x-coordinate point where a graph crosses the x-axis. y-intercept: the y-coordinate of a point where a graph crosses the y-axis.

4. Finding x-and y-intercepts from a graph:

5. Finding x-and y-intercepts from a graph:

6. Finding x-and y-intercepts from a graph:

7. What do we notice about……
Coordinates on the x-intercept? Coordinates on the y-intercept?

8. Finding x-and y-intercepts from a linear equation:
3x – 2y = 6

9. Finding x-and y-intercepts from a linear equation:
X – 2y = -2

10. Finding x-and y-intercepts from a linear equation:
4x + 3y = 12

11. Finding x-and y-intercepts from a linear equation:
Y = -2x - 8

12. Using intercepts to graph a linear function
Graph: 4x + 2y = 12 Step 1: Step 2: Step 3:

13. Using intercepts to graph a linear function
Graph: 3x + y = 9 Step 1: Step 2: Step 3:

14. Using intercepts to graph a linear function
Graph: -2x – 6y = 12

15. Practice Makes Perfect!
ONLY find the x- and y-intercepts of the following: 1.) 5x – 20y = 40 2.) -3x + 12y = 24 GRAPH the following: 3.) 4y – 2x = 12 4.) y = 3x + 9

16. Homework
Page 400 #’s 10-18, 21-26