Question

In the general equation of a line, if A = 0, what will the graph of the line look like?
It will be vertical.
It will be horizontal.
It will be equivalent to the graph of y = x.
There is not enough information to tell.

Answer 1

General equation of a line:

\[Ax + By = C\]

if \(A=0\) we have \[0x + By = C\]\[By=C\]\[y = \frac{C}{B}\]

If \(y\) is constant, what sort of a line do we have?