22-09-2018
Mathematics

contestada

Find the equation of the line that is perpendicular to the line y = 4 and passes through the point (−2, 1).

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22-09-2018

The line y = 4 is a horizontal line. A perpendicular line will be a vertical line of the form ...

... x = constant

In order for that line to go through a point with an x-value of -2, the constant must be -2.

The desired equation is ...

... x = -2

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