Question

The pair of linear equations $x-y-1=0$ and $x-2y+2=0$ represents _____ lines.

• A. Coinciding
• B. Intersecting
• C. Parallel
• D. Curved

Hint:

To identify the nature of two lines quickly: \[ \frac{a_1}{a_2}\neq \frac{b_1}{b_2} \Rightarrow \text{Intersecting} \] \[ \frac{a_1}{a_2}= \frac{b_1}{b_2}\neq \frac{c_1}{c_2} \Rightarrow \text{Parallel} \] \[ \frac{a_1}{a_2}= \frac{b_1}{b_2}= \frac{c_1}{c_2} \Rightarrow \text{Coincident} \]

Answer 1

The Correct Option is B