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Class 10 Mathematics Pair of Linear Equations in Two Variables Graphical method of finding solutions.ExpertLevel 54

For which value will the lines (3x+ay=15) and (9x+12y=47) be distinct and parallel?

Answer and explanation

Correct answer: (a=4)

For parallel lines, (\frac{3}{9}=\frac{a}{12}), so (a=4). Since (\frac{15}{47}\neq\frac{1}{3}), they will not be coincident.

Tags

graphical methodparameterparallel distinctno solution

Frequently asked questions

What is the correct answer to this question?

(a=4)

Why is this the correct answer?

For parallel lines, (\frac{3}{9}=\frac{a}{12}), so (a=4). Since (\frac{15}{47}\neq\frac{1}{3}), they will not be coincident.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Pair of Linear Equations in Two Variables. Topic: Graphical method of finding solutions..

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