The problem asks us to find the slope of a line given its graph, and it tells us that the y-intercept is $(0, 10)$.

1. Problem Description

The problem asks us to find the slope of a line given its graph, and it tells us that the y-intercept is $(0, 10)$.

2. Solution Steps

First, we need to identify two points on the line. From the graph, we can see that the line passes through the points $(0, 10)$ and $(10, 0)$.

Next, we can use the formula for the slope of a line given two points $(x_1, y_1)$ and $(x_2, y_2)$:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Using the points $(0, 10)$ and $(10, 0)$, we can plug in the values:

$x_1 = 0, y_1 = 10, x_2 = 10, y_2 = 0$.

$m = \frac{0 - 10}{10 - 0} = \frac{-10}{10} = -1$

3. Final Answer

$m = -1$