Identify the perpendicular sides of each right triangle

The perpendicular sides in triangle 1 are sides VZ and ZX. In triangle 2, sides KM and QM are perpendicular.

To clear things up, thing of perpendicular as creating an L shape. Two lines that create a 90 degree or right angle.

4+2=-2. 1+2=3. y=-2/3x+b. 2=4/3+b. 2/3=b. the answer is y= -2/3x+2/3