Which statement about horizontal lines is true?

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Study for the Geometry CBE Exam. Improve your understanding with multiple choice questions and detailed solutions. Prepare effectively for your exam!

Multiple Choice

Which statement about horizontal lines is true?

Explanation:
Slope is rise over run, Δy/Δx, with Δx not zero. A horizontal line has no vertical change as you move along it, so Δy = 0. Therefore the slope is 0/Δx = 0. This means the line is level and has neither a positive nor a negative slope. The slope would be undefined only for vertical lines (where Δx = 0), not horizontal ones.

Slope is rise over run, Δy/Δx, with Δx not zero. A horizontal line has no vertical change as you move along it, so Δy = 0. Therefore the slope is 0/Δx = 0. This means the line is level and has neither a positive nor a negative slope. The slope would be undefined only for vertical lines (where Δx = 0), not horizontal ones.

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