Answer:
The answer is "lines CD & AB are perpendicular
".
Step-by-step explanation:
Given points:
[tex]A=(0,7)\\\\B=(8,-5)\\\\C=(-3,-8)\\\\D=(6,-2)[/tex]
Calculating the slope of AB: [tex]y = -\frac{12}{8}x + 7[/tex]
Calculating the slope of CD: [tex]y = \frac{6}{9}x - 6[/tex]
simplify the slop:
[tex]AB= -\frac{3}{2}\\\\CD=\frac{2}{3}\\\\[/tex]
