1. Quick Start Expectations
Fill in planner and HWRS HW: p. 98, #2-6, 7a-b, 8-12
Get a signature on HWRS
On desk: journal, calculator, HWRS, pencil, pen
Warm Up:

2. The dependent variable The independent variable
Define all the parts of the equation.
y = mx + b
The dependent variable
Y- intercept
The independent variable
Slope

3. How do you find the slope from…
a graph?
Rise (vertical change)
Run (horizontal change)
a table?
As x goes up by 1, what happens to y?
an equation?
The coefficient
(the number next to the variable)

9. Y = 6 - 3x Y = 3x + 6 Y-intercept = 6 Y-intercept = 6 Slope = Rise =
Run -3 1
Slope = Rise =
Run 3 1
Y = 6 - 3x
Y = 3x + 6

10. Y = 1.5x - 1 Y = -0.5x + 5 Slope = Rise = change in Y =
Run change in X 3 2
Y-intercept = -1
Y = 1.5x - 1
Slope = Rise = change in Y =
Run change in X
-0.5 1
Y-intercept = 5
Y = -0.5x + 5

11. Y-intercept = 5
Y-intercept = 20
Slope = coefficient of x
Slope =
Slope = coefficient of x
Slope =
2.5 -3

12. Or calculate the change in y divided by the change in x-1
Make a table?
Slope = Rise = change in Y =
Run change in X
Graph the points?
Or calculate the change in y divided by the change in x
(4, 4)
(5, 3)
(6, 2)
Use the table to find 2 more points?
Find the y-intercept , write the equation, use substitution?

14. a graph?
Rise (vertical change)
Run (horizontal change)
a table?
As x goes up by 1, what happens to y?
an equation?
The coefficient
(the number next to the variable)