Which axis is parallel to a line with slope 0?

Master the Certify Teacher EC-6 (391) Mathematics Test. Use flashcards and multiple choice questions with explanations. Boost your confidence and excel in your exam!

Multiple Choice

Which axis is parallel to a line with slope 0?

Explanation:
A line with slope 0 runs horizontally, left to right. The axis that goes horizontally in the standard coordinate plane is the X-axis, so a line with slope 0 is parallel to the X-axis. It isn’t parallel to the Y-axis, which goes vertical, and the Z-axis isn’t part of the usual 2D plane.

A line with slope 0 runs horizontally, left to right. The axis that goes horizontally in the standard coordinate plane is the X-axis, so a line with slope 0 is parallel to the X-axis. It isn’t parallel to the Y-axis, which goes vertical, and the Z-axis isn’t part of the usual 2D plane.

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