Line qr goes through points q(0,1) and r(2,7). which equation represents line qr ?

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

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.

Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature and explain why or why not.