Worksheet: Approximating Roots of Quadratic Equations with a Table or a Calculator

In this worksheet, we will practice approximating noninteger roots using tables or graphing calculators.

Q1:

Using the given graph of the equation 𝑦 = 𝑥 + 2 𝑥 5 2 , find which of the following is the best approximation for the solutions to 𝑥 + 2 𝑥 5 = 0 2 .

  • A 𝑥 = 4 or 2
  • B 𝑥 = 3 or 1
  • C 𝑥 = 3 . 5 or 1.5

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