1. Introduction to Graphing
Date:
NB page # 19

2. Graphing in Math y axis Quadrant II Quadrant I x axis origin
Quadrant IV
Quadrant III
You should be familiar with the rectangular coordinate system and point plotting from an earlier algebra course. Let's just run through the basics.

3. Graphing in Science
y axis
x axis
In science, we only show the part of the graph that is relevant to what we are investigating.

4. The Axes in Science y-axis x-axis Responding Variable
Manipulated Variable
In science, we only show the part of the graph that is relevant to what we are investigating.

5. The Axes in Science y-axis x-axis
Where do you put the manipulated variable on a graph?
Y-axis
X-axis
y-axis
x-axis

6. Linear vs. Non-Linear Graphing
Standard 9.g

7. What is a Linear Graph?
It is a line graph
The line is straight

8. What is a Non-Linear Graph?
It is any kind of graph of a line that is jagged or has a curve

9. What type of graph is this?
Linear
Nonlinear

10. What type of graph is this?
Linear
Nonlinear

11. What type of graph is this?
LineGraphQuiz.html
Linear
Nonlinear

12. What type of graph is this?
Linear
Nonlinear
Paratherm-MR/MRgraphs.GIF

13. What type of graph is this?
Linear
Nonlinear
warming/art/graph2.gif

14. What type of graph is this?
Linear
Nonlinear

15. What type of graph is this?
Linear
Nonlinear

16. Slopes and Graphing
Standard 9.d

18. What is slope?
The slope tells you how much Y changes for every change in X.
Slope = = =
y2 – y1
x2 – x1 y x
rise
run

19. What is slope? The slope of a line is constant
You can only find the slope of a graph of a straight line.

20. The Slope is Positive
The line goes UP HILL to the RIGHT

21. The Slope is Negative
The line goes DOWN HILL to the RIGHT

22. The Slope is Zero
The line is horizontal
Basically nothing is changing

23. The Slope is Undefined
The line is vertical
Basically nothing is changing

24. A line graph shows
Changes in the responding variable
How the responding variable changes in the response to the manipulated variable
Changes in the manipulated variable