1. review
Is y = 3x a direct variation. If so, what’s the constant and what’s the slope?
X and y vary directly. Write an equation that relates x and y. X = 3, y = 27

2. 4.6 Slope intercept

3. Notes Slope intercept form: y = mx + b
M = slope
B = y-intercept
Parallel: 2 lines in the same plane that don’t intersect
If 2 lines are parallel, they have the SAME slope.

4. Write in slope intercept form then identify the slope and y-int. t/st
Y = -x + 2
2x – 4y = 16
Y = 𝑥+3 2
Y = -4

5. Graph
Y = -x + 1
3x – 2y = 6
Y = 4x

6. Graph
Y = -3x
2x – 5y = 15
Y = 2x + 3

7. Decide if the equations are parallel
Y = x + 3, y = 6 + x
2x + y = 3, 2x + y – 14 = 0

8. Decide if the equations are parallel
3x + 2y = 1, -2y = 3x - 2
Y = 3x – 2, y = 1/2x + 4

9. Wrap up
Questions/Comments
Hw: text pg. 244, #’s: evens, 62, 63