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8. The pair of equations x = a and y = b graphically representing lines which are:, (a) Coincident, (b) Intersecting at (a, b), |(c) Parallel, (d) Intersecting at (b, a ), y =b, γγa
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15. The pair of equations y = 0 and y = -7 has :, |(a) One solution, |(b) Two solutions, (c) Infinitely many solutions, (d) No solution, No so, Ary
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13. If a pair of linear equations is consistent, then the lines will be :, |(a) Parallel, (b) Always coincident<, (CIntersecting orcoincident, (d) Always intersecting, atleast, bue bolution
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19. If x = a,y = b is the solution of the equations xβ y = 2 and x + y β 4, then the values of a and b, respectively are :, (a) 3 and 5, (b) 5 and 3, (c) 3 and 1, (d)-1 and β 3, a-bγ2, a tb-4=0, a-b =2, a tb =4, a-b-Z, 3-6=2, '3-b