0580 P22 - Nov 2012 - Q20 - 7 marks
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(a) The lines y = 2x + 8 and y = 2x − 12 meet the x-axis at P and Q. Find PQ. [2]
(b) Write the equation of the line with gradient −4 through (0,5). [2]
(c) Find the equation of the parallel line through (5,4). [3]
