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ff What is the slope of a line parallel to 5x + 4y + 9 = 0? ff

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ff The lines 30x  5y + 11 = 0 and y = 6x + 14 are ff

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ff Find the value of k if the line ky = (k  1)x + 3k is parallel to y = 2x + 5. ff

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ff What is the slope of a line parallel to 6x + 5y + 11 = 0? ff

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ff The lines 20x  4y + 9 = 0 and y = 5x + 12 are ff

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ff In a plane, two lines parallel to a third line are ff

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ff In a plane, two lines perpendicular to a third line are ff

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ff The slopes of nonvertical parallel lines are ff

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ff Identify the correct statement. I. Vertical lines are perpendicular to each other. II. Vertical lines are parallel to each other. III. Vertical lines are not parallel to each other. IV. Vertical lines are intersecting. ff

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ff What is the slope of a line parallel to xaxis? ff

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ff Number of lines parallel to a line and passing through a given point is/are ff

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ff Find the product of the slopes of xaxis and yaxis. ff

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ff A(1,  3), B(5, 4), C(3, 2), D(2, 0) are the coordinates of 4 points in the x  y plane. Is AC↔  BD↔? ff

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ff Which of the following lines is parallel to x = 3? ff

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ff Slope of a line parallel to 2x + 3y + 6 = 0 is ff

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ff A(4.5, 5), B(2, 5), C(1.5,  2), D(3,  2) are the coordinates of 4 points in the xy plane. What can you say about the lines AB↔ and CD↔? ff

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ff What is the slope of a line parallel to y = 3? ff

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ff Which of the following is not parallel to y = (35)x + 6? ff

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ff Find the equation of a line parallel to x = 3 and passing through (4, 5). ff

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ff Find the equation of the line parallel to y = 4 and passing through (6, 5). ff

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ff Find the equation of the line parallel to y = 2x + 3 and passing through (1, 2). ff

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ff What is the inclination of a line parallel to y = x  3 ? ff

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ff What is the slope of a line parallel to yaxis? ff

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ff A line AB↔ makes an angle of 60^{o} with the positive xaxis. What is the slope of any line parallel to AB? ff

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ff If the line through (3, y) and (2, 7) is parallel to the line through ( 1, 4) and (0, 6), then what is the value of y? ff

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ff Choose the equation of the line passing through the point ( 5, 1) and parallel to the line joining the points A(7,  1) and B(0, 3). ff

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ff What is the value of p if the lines y = 3x + 7 and 2y + px = 3 are parallel to each other? ff

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