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Home > A2C > Chapter 9 > Lesson 9.2.1 > Problem 9-74

9-74.
  1. If f (x) = x2 + 7x − 9, calculate the values in parts (a) through (c) below. Homework Help ✎

    1. f (−3)

    2. f (i)

    3. f (−3 + i)

−21

f(i) = i 2 + 7i − 9

−10 + 7i

f(−3 + i) = (−3 +i)2 + 7(−3 + i) − 9