How to make a coordinate graph

1. A genda Monday, Sept. 14, 2009 1. Complete a self assessment of your glyph with the rubric in pencil. G ive yourself a check for each category in pencil. Turn in glyph. 2. Variables & Patterns problem 1.2 How to make a coordinate graph 3. Homework 2 V&P p. 15 # 1 - 3 you will need graph paper

2. What does a coordinate graph look like? What is the purpose of a coordinate graph? How do you locate points on a coordinate graph?

3. Please copy in your journal section. Star the top of the page so you can find it easily. How to make a coordinate graph: Step 1: Identify two variables. Example: Step 2: Select an axis to represent each variable. First decide if one variable depends on another. • put independent variable x axis (horizontal) • put dependent variable y axis (vertical) Example: Step 3: Select a scale for each axis. Look at the range of data and decide on an appropriate scale. Example: Step 4: Plot the data points. E ach data point is called a coordinate pair (x, y) x = horizontal y = vertical Step 5: Title your graph. number of jumping jacks time in seconds label the intervals. See graph

5. Complete Problem 1.2 on p. 9 with your partner. Label a piece of graph paper for a new journal page: V&P 1.2 9/14 Use your jumping jack data.

6. Summarizing questions Which variable is on the x-axis? Why? What is the least value on the x-axis? What is the greatest value on the x-axis? What scale did you use? Why? What is the size of the interval on the x-axis? Why? Which variable is on the y-axis? What is the least value on the y-axis? What is the greatest value on the y-axis? What scale did you use? Why? What is the size of the interval on the y-axis? Why?

7. Homework: 2 V&P p. 15 # 1 - 3 - you will need a piece of graph paper

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