Determine if the equation x^2-y=1 defines y as a function of x.
yes. one input results in one output.
yes. one output results in one input.
no. at least one outpot results in two inputs.
no. at least one input results in two outputs.

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)