Select the equation of the line that is perpendicular to y = 9 and passes through the point (5, 2).
Question
Select the equation of the line that is perpendicular to y = 9 and passes through the point (5, 2).
Solution
The line y = 9 is a horizontal line. A line that is perpendicular to a horizontal line is a vertical line.
A vertical line has an undefined slope and takes the form of x = c, where c is a constant.
Since the line we are looking for passes through the point (5, 2), the equation of the line is x = 5.
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