The potential energy, p, in a spring is represented using the formula p = p equals startfraction one-half endfraction k x squared. kx2. lupe uses an equivalent equation, which is solved for k, to determine the answers to her homework.

Fred and gene are hang gliding. fred is 700 feet above the ground and descending at 15 ft/s. gene is decending as shown in the table. interpret the rates of change and initial values of the linear functions in terms of the situations they model. show all work. freds equation is f(x)=-15x+700. ( genes is the table attached)