1. Get project folder

2. agenda
1) get and sign for project folder
2) notes
3) exit ticket

5. function
Not a function

7. Are these functions?
Does input have one output
Vertical line test

8. List all the common terms
Input 2) 3) 4)
Y coordinate 2) 3) 4)

9. The grade of a road is the same as slope
Here is the picture:
7 feet
100 feet

10. Slope of a line
The slope measures the “rise” and “run” of the stairs beneath or above the line. 4 4

11. Slope of a line
The “stairs” are all through the line and the same size.

12. Slope of a line
Can I make a line if the stairs aren’t the same size?

13. Slope of a line (m)
To find the slope, use the formula 4 4

14. Slope of a line (m)
To find the slope, use the formula 4 4

15. Slope of a line (m) Find the slope of the following lines: A) B) 2 2 13

16. Slope of a line (m) Is the slope positive or negative? Answer:
Positive, Read from left to right

17. Try for yourself
Draw 2 lines with the following slopes on your graph paper.
A)m = B) m = 3 4
Start anywhere on your coordinate plane.

18. M= 1 2

19. Slope of a line (m)
The last 2 lines had a positive slope, let’s look at slopes with negative slopes

20. Slope of a line (m)
We still use rise over run, except the “stairs” are underneath the line. -2 3

21. Try for yourself
Draw 2 lines with the following slopes on your graph paper.
C) m= − D) m= −5 6
Start anywhere on your coordinate plane.

22. m= −1 4

23. X and Y intercepts X intercept is when the line crosses the X axis
It is when the Y coordinate is zero
Y intercept is when the line crosses the Y axis
It is when the X coordinate is zero

27. What do you need to do? Identify the slope on a graph
find the x and y intercept (intersects the grid lines)
Decide if its negative or positive