Question

9 all horizontal lines are parallel to the ____________. a quadrant b origin c y - axis d x - axis

Explanation:

• A horizontal line has a slope of \(0\).
• The \(x -\)axis also has a slope of \(0\).
• Parallel lines have the same slope.
• A quadrant is a region in the coordinate - plane, not a line.
• The origin is a point \((0,0)\), not a line.
• The \(y -\)axis has an undefined slope (vertical line).

Answer:

D. \(x-\)axis