## anonymous 4 years ago Find the slope of the line that contains the points named. P(1, 2), Q(3, 4) m

1. anonymous

right, you use the formula $m=\frac{y_2-y_1}{x_2=x_1} = \frac{4-2}{3-1} = \frac{2}{2} = 1$ where m is your slope (or gradient).

2. anonymous

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

3. anonymous

could you help me with this one also you think? K(c + d, c - d), L(c - d, c + d) m =

4. anonymous

$m=\frac{y_2-y_1}{x_2-x_1} = \frac{c+d-(c-d)}{c-d - (c+d)} = \frac{2d}{-2d} = -1$