7. Higher Order Thinking The graph shows the speed of an airplane during a trip from City X to City Z.
a. Compare the intervals where the function is increasing.

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

If f(x) = 4x – 3 and g(x) = 8x + 2, find each function value a.f[g(3)] b.g[f(5)] c.g{f[g(-4)]}

If sin(x) = 0 and cos(x) = 1, what is tan(x)?