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Solved Examples
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fff What is the product of the slopes of the lines x = 3 and y = 3?
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fff What is the slope of a line perpendicular to y = 2? fff View Solution
fff What is the slope of a line perpendicular to 9x + 10y + 2 = 0?
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fff What can you say about the lines 3x + 2y + 5 = 0 and 2x - 3y + 7 = 0? fff View Solution
fff What is the equation of the line perpendicular to x = 3 and passing through (3, 5)? fff View Solution
fff What is the equation of the line perpendicular to y = 2 and passing through (3, 5)? fff View Solution
fff Identify the correct statement.
I. Perpendicular lines have same slope.
II. Perpendicular lines have same x-intercept.
III. Perpendicular lines have same y-intercept.
IV. A line can have more than one perpendicular line intersecting it.
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fff What is the slope of a line perpendicular to 5x + 6y + 9 = 0?
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fff What can you say about the lines 6x + 5y + 11 = 0 and 5x - 6y + 13 = 0? fff View Solution
fff If the line through (x, 3) and (4, 9) is perpendicular to the line through (- 1, 4) and (3, 6), then what is the value of x?
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fff What is the product of the slopes of two perpendicular lines, neither of which is vertical?
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fff What is the product of the slopes of the lines x = 9 and y = 9?
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DD  Identify the correct statement.
I. The coordinate axes are perpendicular to each other
II. The coordinate axes are vertical
III. The coordinate axes are horizontal.
IV. The coordinate axes are parallel to each other.  DD
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DD  Which of the following lines are perpendicular to x = 3?  DD View Solution
DD  What is the slope of the line perpendicular to 2x + 3y + 6 = 0?
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DD  A (- 3, 2), B (5, 1), C (2, 7), D (1, - 1) are the coordinates of 4 points in the x-y plane. What can you say about the lines AB and CD?
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DD  What is the slope of a line perpendicular to y = 4?  DD View Solution
DD  The lines x = 3 and y = 3 are  DD View Solution
DD  What is the product of the slopes of x-axis and y-axis?
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DD  Which of the following is not perpendicular to y = 2x + 6?
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DD  Find the inclination of a line perpendicular to y = x - 3.  DD View Solution
DD  What is the equation of the line perpendicular to x = 5 and passing through (3, 5)?  DD View Solution
DD  What is the equation of the line perpendicular to y = 5 and passing through (5, 7)?  DD View Solution
DD  What is the equation of the line perpendicular to 2x + y + 3 = 0 and passing through (0, 4)?  DD View Solution
DD  A line AB makes an angle of 60o with the positive x-axis. What is the slope of any line perpendicular to AB?
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DD  If the line through (3, y) and (2, 7) is perpendicular to the line through (- 1, 4) and (0, 6), then what is the value of y?
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DD  What is the equation of the line through the point P (- 5, 1) and perpendicular to the line joining the points A (7, - 1) and B (0, 3)?  DD View Solution
DD  Find the value of p, if the lines y = 3x + 7 and 2y + px = 3 are perpendicular to each other.  DD View Solution
DD  Find the slope of a line perpendicular to y-axis.
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DD  What is the slope of a line perpendicular to x-axis?  DD View Solution
DD  Find the number of lines perpendicular to a line and passing through a given point outside the line.  DD View Solution