Question

Given f(x) = 9x - 5 and g(x) = x², choose the expression for (fºg)(x).

Answer 1

Answer:

  9x² -5

Step-by-step explanation:

  (f○g)(x) means f(g(x))

Put the definition of g(x) in place of x in the definition of f(x):

  f(g(x)) = f(x²) = 9(x²) - 5

  (f○g)(x) = 9x² - 5