Algebra-1

Question Analysis
This question tests the student's ability to write the equation of a line perpendicular to a given line, using the fact that the product of the slopes of two perpendicular lines is .

Key Concept Explanation
Perpendicular lines are lines that intersect at a right angle (90 degrees), and the product of their slopes is . If the slope of one line is , then the slope of a line perpendicular to it is . The equation of a line can be written in the form , where is the slope and is the y-intercept.

Step-by-step Solution
1. Identify the slope of the given line .
2. The slope of this line is .
3. The slope of the perpendicular line is

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