Is the line 3x + 4y + 7 = 0 perpendicular to the line 28x - 21y + 50 = 0?
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Find the slope and y-intercept of the line :
(i) y = 4
(ii) ax - by = 0
(iii) 3x - 4y = 5
The equation of a line is x - y = 4. Find its slope and y-intercept. Also, find its inclination.
Is the line x – 3y = 4 perpendicular to the line 3x – y = 7?
Is the line 3x + 2y = 5 parallel to the line x + 2y = 1?