How many roots do the functions have in common?
f(x) = x^2 – 9

Issof claims that the scale factor is 1/2. which statement about his claim is correct

The actual length of side t is 0.045cm. use the scale drawing to find the actual side length of w

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?