9th mathematics NCERT exercise questions with answers, Mathematics

Linear equations in two variables – Exercise 4.2 – Class IX

Which one of the following options is true, and why? y = 3x + 5 has (i) a unique solution, (ii) only two solutions, (iii) infinitely many solutions Solution: (iiI) y = 3x + 5 ⇒ 3x – y + 5 = 0 has infinitely many solutions. Because it is a linear equation in two… Continue reading Linear equations in two variables – Exercise 4.2 – Class IX

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