The gradient (or slope) of a line passing through two points $(x_1, y_1)$ and $(x_2, y_2)$ is given by the formula:

$\text{Slope (m)} = \frac{y_2 - y_1}{x_2 - x_1}$

For the points $(-2, 5)$ and $(3, 5)$:

$\text{m} = \frac{5 - 5}{3 - (-2)} = \frac{0}{3 + 2} = \frac{0}{5} = 0$

The gradient of the line is $0$. This means the line is horizontal.

Do you want more details, or have any questions?

Here are five related questions:

1. What is the gradient of a vertical line?
2. How do you calculate the equation of a line using two points?
3. What does a positive gradient indicate about a line's direction?
4. How do you find the midpoint between two points?
5. Can a line have an undefined gradient?

Tip: A horizontal line always has a gradient of zero, as there's no vertical change.