Find equation for a vertical line passing through the point (-12,-4)

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!

The ordered pair (2,-5.2) is located in quadrant iv

To prove a polygon is a rectangle, which of the properties listed must be included in the proof?