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(a) 0

(b) 1

(c) infinitely many

(d) none of these

(a) intersecting lines

(b) parallel lines

(c) coincident lines

(d) all of these

(a) parallel

(b) always coincident

(c) intersecting or coincident

(d) always intersecting

(a) k = 6

(b) k ≠ 6

(c) k = 3

(d) k ≠ 3

(a) intersect at a point

(b) are parallel

(c) are coincident

(d) intersect at exactly two points

(a) many solutions

(b) no solution

(c) one solution

(d) two solutions

(a) one solution

(b) two solutions

(c) infinitely many solutions

(d) no solution

(a) –5/4

(b) 2/5

(c) 15/4

(d) 3/2

(a) one solution

(b) two solutions

(c) no solution

(d) many solutions

(a) one solution

(b) two solutions

(c) many solutions

(d) no solution

(a) k = 6

(b) k ≠ 6

(c) k = 0

(d) k has any value

12. One equation of a pair of dependent linear equations is –5x + 7y = 2, the second equation can be :

(a) 10x + 14y + 4 = 0

(b) –10x = 14y + 4 – 0

(c) –10x + 14y + 4 = 0

(d) 10x – 14y = –4

(a) k = 3

(b) k ≠ 3

(c) k ≠ 0

(d) k = 0

(a) k = 3

(b) k = 2

(c) k = 4

(d) k = –2

(a) 3 and 5

(b) 5 and 3

(c) 3 and 1

(d) –1 and –3

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