Question

The pair of equations $x=0$ and $y=-7$ has

• A. One solution
• B. Two solutions
• C. Infinitely many solutions
• D. No solution

Answer 1

The correct option is A One solution

Clearly from the graph, given system of linear equations has unique solution and is given by (0,-7)

Or

In Given Equations $x=0$ and $y=-7$
$\frac{a_1}{a_2}=\frac{1}{0}$
$\frac{b_1}{b_2}=\frac{0}{1}$
$\frac{a_1}{a_2}\ne \frac{b_1}{b_2}$
Hence the system has $One$ $solution$