Ch 3.1 Rate of Change and Slope Notes

Algebra 1-1

Ch 3.1 Rate of Change and Slope Notes

You will learn today: How to find rate of change and how to find slope.

Describe the line using the words increasing, decreasing, horizontal or vertical. Find the slope.

1.

Describe______
Slope______ / 2.

Describe______
Slope______ / 3.

Describe______
Slope______
4.

Describe______
Slope______ / 5.

Describe______
Slope______ / 6.

Describe______
Slope______
7.

Describe______
Slope______ / 8.

Describe______
Slope______ / 9.

Describe______
Slope______

Slope is ______or ______. The variable used to represent slope is ______. The slope of a vertical line is ______. The slope of a horizontal line is ______. The slope of an increasing line is ______. The slope of a decreasing line is ______.

The formula to find slope is ______.

Find the slope of the line that passes through each pair of points.
10. (11, 3), (9, 7) / 11. (8, 11), (5, 2) / 12. (1, 9), (6, 4)
13. (4, 5), (-2, -3) / 14. (6, 3), (-4, -1) / 15. (2, 3), (-1, -6)
16. (-3, 9), (7, 6) / 17. (1, -6), (2, 4) / 18. (-4, -2), (3, 1)
19. (6, -2), (4, -1) / 20. (-5, 2), (-4, -2) / 21. (5, -6), (3, 2)
22. (-8, 3), (-6, 2) / 23. (-1, 3), (2, 6) / 24. (-1, 11), (-4, 1)
Find the slope. Be careful with these.
25. (-9, 1), (-9, -5) / 26. (-1, -5), (-3, -5) / 27. (-1, 3), (-1, -4)
28. (3, -4), (3, 2) / 29. (7, -3), (1, -3) / 30. (-8, 1), (-8, -4)
The rate of change is constant in each graph. Find the rate of change and label.
31.
/ 32.

33.
/ 34.

The rate of change is constant in each table. Find the rate of change and label.
35.

/ 36.
37.

/ 38.