What is the formula for calculating momentum?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

The total number of dental clinics total for the last 12 months was recorded

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.