Question

9. AB is parallel to CD. If A and B are (2,3) and (6,9), slope of CD is.​

Answer 1

Answer:

hope it will help you

Step-by-step explanation:

AB and CD both are perpendicular to the same line PQ.

Then,

∠ABQ=90

o

and also ∠CDQ=90

o

∠ABQ=∠CDQ

Since, they are corresponding angles then AB ∥ CD. [If two lines are cut by a transversal and the corresponding angles are congruent, the lines are parallel.]