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Home > INT3 > Chapter 8 > Lesson 8.3.4 > Problem 8-145

8-145.
  1. Without completely solving them, decide which of the following functions have real zeros, and which have complex zeros. Homework Help ✎

    1. y = x2 – 6

    2. y = x2 + 6

    3. y = x2 – 2x + 10

    4. y = x2 – 2x – 10

    5. y = (x – 3)2 – 4

    6. y = (x – 3)2 + 4

Think about the graph of each given function. Are there any x-intercepts?

real

complex

complex

real

real

complex