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WORKBOOK
4) d 1: x – 2y + 2 = 0 and d 2 : ax – 4y + c = 0 are coincident. Find a + c.
5) Find the equation of the line that is passing through origin and the intersection point of d 1: x –
y – 2 = 0 and d 2: 2x + y – 4 = 0.
6) If the lines x + y + 5 = 0, 3x – y + 3 = 0 and 2x – by + 6 = 0 are passing through the same point
then find b.
mx 2y 1 0
7) m, n and the solution set of the equation system is empty set then
(1 m)x 4y 2 0
find m.
(m 1)x 3y n 0
8) If the solution set of the quation system has infinetely many
x (m 1)y n 2 0
elements then find m+n. (m, n )
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102math-wb-w3-(Vector)
