Q. What is the equation of the horizontal line through (−7,−3) ?
Identify Horizontal Line: A horizontal line has a constant y-value across all x-values. To find the equation of the horizontal line through a given point, we simply need to set the y-coordinate of the line equal to the y-coordinate of the given point.
Given Point (−7,−3): The given point is (−7,−3). Since the line is horizontal, the y-coordinate for every point on the line will be the same as the y-coordinate of the given point, which is −3.
Equation of Horizontal Line: The equation of a horizontal line can be written as y=k, where k is the constant y-value. For our line, k is −3.
Final Equation: Therefore, the equation of the horizontal line through the point (−7,−3) is y=−3.
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