Question

$3x+4y=6\&6x+8y=12$ are ______.

• A. intersecting lines
• B. parallel lines
• C. coincident lines
• D. dependent pair of linear equations

Answer 1

Answer: (C), (D)

dependent pair of linear equations

For dependent pair of lines, $\frac{a_1}{a_2}=\frac{b_1}{b_2}=\frac{c_1}{c_2}.$

Here $\frac{3}{6}=\frac{4}{8}=\frac{6}{12}=\frac{1}{2}$ These are coincident lines and dependent pair of linear equations.