Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
2. Graphs of Equations
Lines
1:31 minutes
Problem 52a
Textbook Question
Textbook QuestionFind the slope of each line, provided that it has a slope. through (5, 6) and (5, -2)
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Slope of a Line
The slope of a line measures its steepness and direction, calculated as the ratio of the vertical change (rise) to the horizontal change (run) between two points on the line. It is often represented by the letter 'm' in the slope-intercept form of a linear equation, y = mx + b. A positive slope indicates the line rises from left to right, while a negative slope indicates it falls.
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Coordinates of Points
Coordinates are pairs of numbers that define the position of points in a Cartesian plane. Each point is represented as (x, y), where 'x' is the horizontal position and 'y' is the vertical position. In the given question, the points (5, 6) and (5, -2) are used to determine the slope, highlighting the importance of understanding how to interpret these values.
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Graphs and Coordinates - Example
Vertical Lines
A vertical line is defined by having the same x-coordinate for all points on the line, resulting in an undefined slope. In the context of the question, both points share the x-coordinate of 5, indicating that the line is vertical. This means that while we can identify the line's position, we cannot calculate a numerical slope, as it does not conform to the standard slope formula.
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