# What is the equation of a vertical line passing through the point (−4, 7)?

We will use the concept of straight lines in order to find the required line.

## Answer: The equation of a vertical line passing through the point (−4, 7) is x = -4.

Let us see how we will use the concept of straight lines in order to find the required line.

**Explanation:**

It is given that line is vertical, hence the slope of the line is equal to infinity or 1 / 0.

Now let us consider that line passes through (-4,7) and (x, y)

Thus, using the slope formula,

(y - 7) / (x + 4) = 1 / 0

⇒ x + 4 = 0

⇒ x = -4