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Questions and Answers
Which of the following best describes the slope of a horizontal line?
Which of the following best describes the slope of a horizontal line?
- Negative
- Positive
- Zero (correct)
- Undefined
What is the slope of a vertical line?
What is the slope of a vertical line?
- Zero
- Undefined (correct)
- Negative
- Positive
What is the slope of a line that passes through the points (2,3) and (5,9)?
What is the slope of a line that passes through the points (2,3) and (5,9)?
- 3
- -2
- -3
- 2 (correct)
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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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