A pentagon is graphed on a coordinate grid and then translated \( 2 \) units to the left and \( 4 \) units up. If one of the vertices of the original pentagon is located at \( ( 10 , - 9 ) , \) what is the ordered pair of this vertex of the new pentagon after the translation?
A linear function that models data is described below. Find the slope of the model. Then describe what this means in terms of the rate of change of the dependent variable per unit change in the independent variable. The linear function \( f ( x ) = - 0.41 x + 28.6 \) models the percentage of adults in a country who smoked cigarettes, \( f ( x ) \) , \( x \) years after \( 1997 \) .
The slope is \( \square \) . (Type an integer or a decimal.)