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Mathematics 18 Online
OpenStudy (anonymous):

Select the equation of the line that passes through the point (3, -1) and is perpendicular to the line on the graph. y = -1 y = 3 x = -1 x = 3

OpenStudy (mathstudent55):

You need to show a graph.

OpenStudy (anonymous):

no...

OpenStudy (anonymous):

thats all it showed me

OpenStudy (anonymous):

wait it did lol sorry ...here

OpenStudy (mathstudent55):

You have a horizontal line given.

OpenStudy (mathstudent55):

A line perpendicular to a horizontal line is a vertical line.

OpenStudy (mathstudent55):

The equation of a vertical line is x = k, where k is the x-coordinate of every point on the line.

OpenStudy (mathstudent55):

You are told the vertical line goes through point (3, -1). Since (3, -1) is a point on a vertical line, every point on that vertical line will also have x-coordinate 3, so the equation of the line is x = 3.

OpenStudy (anonymous):

thanks

OpenStudy (mathstudent55):

You're welcome.

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