Question

What is the equation of a vertical line passing through point `(-3/4,1)`?

Answer 1

The equation is `4x+3=0`

Explanation:

Slope is undefined when line is vertical (to `x`-axis) i.e. parallel to `y`-axis. Hence its equation is of the type `x=k`.

As it passes through `(-3/4,1)`, the equation is `x=-3/4` or `4x+3=0`.