To find the slope of the line that represents the conversion from degrees to gradients using the points provided in the table, we can use the slope formula:
\[ \text{slope} = \frac{y_2 - y_1}{x_2 - x_1} \]
where \( (x_1, y_1) \) and \( (x_2, y_2) \) are two points on the line.
From the table, we can take two points for our calculations. Let's take the points corresponding to \( -180^\circ \) and \( 180^\circ \):
-
For \( -180^\circ \):
- \( x_1 = -180 \)
- \( y_1 = -200 \)
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For \( 180^\circ \):
- \( x_2 = 180 \)
- \( y_2 = 200 \)
Now we can plug these values into the slope formula:
\[ \text{slope} = \frac{200 - (-200)}{180 - (-180)} = \frac{200 + 200}{180 + 180} = \frac{400}{360} = \frac{10}{9} \approx 1.11 \]
Thus, rounding to the nearest hundredth, the slope of the line representing the conversion of degrees to gradients is:
\[ \boxed{1.11} \]