1. X = 4 On Desk: Pencil Math Journal Learning Log Quiz & Sig.?
Math CC7/8 – Be Prepared
On Desk:
Pencil
Math Journal
Learning Log
Quiz & Sig.?
Learning Log:
HW: MSA p. 98, #2-6, 7a-b, #8-12, #50-52
Return MSA Quiz/Cover Sheet- Fri. 1/5
Test Monday 1/8 and Tues 1/9
Solve and check: (x + 5) = 18
X = 4

2. Tasks for Today Absent Students? Quiz, Partner Quiz?
Pass Back MSA Quiz
Lesson 4.2 – Finding the Slope of a Line

4. 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

5. 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?
Change in y divided by change in x
an equation?
The coefficient
(the number next to the variable)

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

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

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

14. -1 (4, 4) (5, 3) (6, 2) Make a table? Graph the points?
Or calculate the change in y divided by the change in x
Slope = Rise = change in Y =
Run 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?

15. Skip?

16. Skip?

17. A graph? Rise (vertical change)
Run (horizontal change)
A table? As x goes up by 1, what happens to y?
Or the change in y divided by the change in x
An equation? It is the coefficient
(the number next to the variable)