Question 14

Q3Multiple choiceExercise 3.2

Are the following pair of linear equations consistent? Justify your answer. 3 1

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(i) –3x– 4y = 12

(ii) x–y= 5 2 1 1 4y + 3x = 12 x – 3y = 5 6

(iii) 2ax + by = a

(iv) x + 3y = 11 4ax + 2by – 2a = 0; a, b ≠ 0 2 (2x + 6y) = 22