1. Objectives: To graph lines using the slope-intercept equation

2. Example 1 Graph y = 3x + 2. What is the slope of this line?8
What is the slope of this line? 6 4 2 -8 -6 -4 -2 2 4 6 8 -2
What is the y-intercept? -4
b = 2 -6 -8

3. Example 2 Graph What is the slope of this line?8
What is the slope of this line? 6 4 2 -8 -6 -4 -2 2 4 6 8 -2
What is the y-intercept? -4
b = -3 -6 -8

4. Practice
Graph each line.
y = 3x - 5
2) y = -2x + 4 3)

5. Example 3 Graph 3x + 4y = 12. 3x + 4y = 12 solve for y -3x -3x

6. Example 3 Graph 3x + 4y = 12. slope y-intercept 8 6 4 2 -8 -6 -4 -2 2

7. Practice
Graph each line.
7x + 2y = 4
2) 5y – 10 = 4x