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# What Is the Slope of a Horizontal Line?

The slope of any horizontal line is always zero. The word "slope" is defined as the incline or the steepness of a straight line. If a line is horizontal, there is no incline.

Continue ReadingThe formula for slope is (y2 - y1) / (x2 - x1). Since slope is expressed as a ratio of the rise of the line divided by the run, and there is no change in altitude from one point on the line to another, the slope of a horizontal line is zero. The slope of a vertical line is considered undefined, as x1 would always equal x2, so the difference between them is zero; when any number is divided by zero, the result is undefined.

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## How Do You Find the Slope When an Equation Is in Standard Form?

A: To find the slope of a line in standard form, convert the line to slope intercept form. In slope intercept form, y = mx+b, m is the slope. Full Answer >Filed Under: -
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## What Is the Variable Plotted on the Horizontal, or X-Axis, Called?

A: The variable plotted on the horizontal, or X-axis, is called the predictor, independent or explanatory variable. the variable plotted on the vertical, or Y... Full Answer >Filed Under: -
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## What Does the Slope of a Graph Represent?

A: In the Cartesian Plane, the slope of a graph represents the rate of change of the graph. The slope of graph at any given point is the point's "y" value (ri... Full Answer >Filed Under: -
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## How Do You Calculate Roof Pitch Angles?

A: Obtain the pitch, or slope angle, of a roof by calculating the ratio of the change in the roof's height to the corresponding horizontal distance. Roof pitc... Full Answer >Filed Under: