Connecting BIG ideas and Answering the Essential Questions
1 Proportionality In the graph of a line, the ratio for the slope indicates the rate of change. |
Rate of Change and Slope (Lesson 5-1)
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Parallel and Perpendicular Lines (Lesson 5-6)
Parallel lines have the same slope. The product of the slopes of perpendicular lines is |
2 Functions There are several forms for the equation of a line. Each form communicates different information. For instance, from the point-slope form, you can determine a point and the slope of a line. |
Slope-Intercept Form (Lesson 5-3)
Point-Slope Form (Lesson 5-4) Standard Form (Lesson 5-5) |
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3 Modeling You can model the trend of the real-world data in a scatter plot with the equation of a line. You can use the equation to estimate or to make predictions. |
Scatter Plots and Trend Lines (Lesson 5-7)
The trend line that shows the relationship between two sets of data most accurately is called the line of best fit. |
Chapter Vocabulary
Choose the vocabulary term that correctly completes the sentence.