Introduction to Graphing Date 9 18 13 NB

Introduction to Graphing Date: 9 -18 -13 NB page # 19

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

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

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

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

Linear vs. Non-Linear Graphing Standard 9. g

What is a Linear Graph? l It is a line graph l The line is straight

What is a Non-Linear Graph? l It is any kind of graph of a line that is jagged or has a curve http: //www. sparknotes. com/testprep/books/act/chapter 10 section 5. rhtml

What type of graph is this? http: //www. sparknotes. com/testprep/books/act/chapter 10 section 5. rhtml a. b. Linear Nonlinear

What type of graph is this? Linear Nonlinear A. B.

What type of graph is this? www. mcwdn. org/Graphs/Line. Graph. Quiz. html a. b. Linear Nonlinear

What type of graph is this? a. Linear Nonlinear www. paratherm. com/ Paratherm-MR/MRgraphs. GIF b.

What type of graph is this? www. pbs. org/wgbh/ warming/art/graph 2. gif a. b. Linear Nonlinear

What type of graph is this? a. b. Linear Nonlinear

What type of graph is this? http: //www. sparknotes. com/testprep/books/act/chapter 10 section 5. rhtml a. b. Linear Nonlinear

Slopes and Graphing Standard 9. d

What is slope? l l The slope tells you how much Y changes for every change in X. Slope = = = y 2 – y 1 Dy rise x 2 – x 1 Dx run

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

The Slope is Positive l The line goes UP HILL to the RIGHT

The Slope is Negative l The line goes DOWN HILL to the RIGHT

The Slope is Zero l The line is horizontal l Basically nothing is changing

The Slope is Undefined l The line is vertical l Basically nothing is changing

A line graph shows a. b. c. Changes in the responding variable How the responding variable changes in the response to the manipulated variable Changes in the manipulated variable