The graph of g(x)g(x) is the graph of f(x)=8x+20f(x)=8x+20 stretched horizontally by a factor of 4.

which equation describes the function g?

a g(x)=8x+5g(x)=8x+5
b g(x)=32x+20g(x)=32x+20
c g(x)=2x+20g(x)=2x+20
d g(x)=2x+5

An incoming airplane is x miles due north from the control tower at an airport. a second incoming airplane is y miles due east of the same control tower. the shortest distance between the two airplanes is z miles. which of the following functions would best model the situation above?