<Dl> <Dd> m = 21 − 15 3 − 4 = 6 − 1 = − 6 . (\ displaystyle m = (\ frac (21 - 15) (3 - 4)) = (\ frac (6) (- 1)) = - 6 .) </Dd> <Dd> Since the slope is negative, the direction of the line is decreasing . Since m> 1, this decline is fairly steep (decline> 45 °). </Dd> </Dl> <Dd> m = 21 − 15 3 − 4 = 6 − 1 = − 6 . (\ displaystyle m = (\ frac (21 - 15) (3 - 4)) = (\ frac (6) (- 1)) = - 6 .) </Dd> <Dd> Since the slope is negative, the direction of the line is decreasing . Since m> 1, this decline is fairly steep (decline> 45 °). </Dd> <Ul> <Li> If y is a linear function of x, then the coefficient of x is the slope of the line created by plotting the function . Therefore, if the equation of the line is given in the form </Li> </Ul>

Use the formula m = to calculate the slope of the line.the slope of the line is