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How to Create a Line Graph: Step-by-Step Guide for Plant Growth Data

This guide provides clear directions for creating a line graph to showcase the growth of plants over time. It walks you through selecting the appropriate type of graph based on your data (line or bar), labeling independent and dependent variables, crafting an engaging title, and determining a scale for your graph. Finally, it offers tips for plotting data points accurately and suggests using a trend line to analyze patterns. Follow these steps to effectively communicate your findings on plant growth!

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How to Create a Line Graph: Step-by-Step Guide for Plant Growth Data

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  1. How to Make a Graph Directions for the Line Graph Worksheet

  2. Step 1: Which Kind of a Graph? • Choose a bar graph to compare • Choose a line graph to show change • Choose a bar graph if using qualitative data—hint: Are there words in the IV column • Choose a line graph if using quantitative data—hint: Are there numbers in both the IV column & DV column

  3. Step 2: Label the IV & DV? Height of Plant (cm) IV goes on the horizontal or the X-axis DV goes on the vertical or y-axis DaysGrown (#)

  4. Step 3: Write a Title Fast Plants Growing “Fast Plants” Height of Plant (cm) • The title should : • reflect what the graph is about • feature the IV and/or DV • Catch the interest of the reader. DaysGrown (#)

  5. Fast Plants Step 4: Determine the Scale Growing “Fast Plants” 14 12 • The scale should: • accommodate the lowest & highest number in data set. • use most of the space & • be neat & easy to read • 3. have EVEN INTERVALS 10 Height of Plant (cm) 8 6 4 2 DaysGrown (#)

  6. Fast Plants Step 4: Determine the Scale Growing “Fast Plants” 14 12 • The scale should: • accommodate the lowest & highest number in data set. • use most of the space & • be neat & easy to read • 3. have EVEN INTERVALS 10 Height of Plant (cm) 8 6 4 2 1 3 5 7 9 11 DaysGrown (#)

  7. Fast Plants Step 5: Plot the Data Growing “Fast Plants” 14 • Plot the points. • draw a line to connect the dots • **Draw a trend line • This is technically not a “line graph” because you cannot write a linear equation for it, it is a scatterplot. . . 12 . 10 Height of Plant (cm) 8 6 . 4 . 2 . 1 3 5 7 9 11 DaysGrown (#)

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