1) If a1/a2≠b1/b2, then what will be the graphical representation a) Parallel b) Intersecting c) Coincident d) Unique solutions 2) Two rails are represented by the equations x+2y–4=0 and 2x+4y–12=0. Will the rails cross each other? a) Yes b) No c) It’s not a common solution d) both (b) and (c) 3) A method where you eliminate one of the variables by adding the two equations. What is this method called? a) Substitution b) Cross multiplication c) Elimination method d) Matrix method 4) Given the two equations, 0.2x+0.3y=1.3 and 0.4x+0.5y=2.3. Identify x and y by substitution method. a) x=2 and y=3 b) x=3 and y=2 c) x=-2 and y=3 d) x=-2 and y=-3 5) What is the algebraic interpretation for a1/a2=b1/b2=c1/c2 a) Unique solutions b) Infinitely many solutions c) No solution d) All of the above

Pair of linear equations in two variables

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