3 Questions
Which of the following best describes the slope of a horizontal line?
Zero
What is the slope of a vertical line?
Undefined
What is the slope of a line that passes through the points (2,3) and (5,9)?
2
Study Notes
Slope of Lines
- The slope of a horizontal line is zero.
- A vertical line has no defined slope (it is undefined).
- The slope of a line that passes through the points (2,3) and (5,9) is (9-3)/(5-2) = 6/3 = 2.
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