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

Q1:

Using the given graph of the equation 𝑦 = π‘₯ + 2 π‘₯ βˆ’ 5 2 , find which of the following is the best approximation for the solutions to π‘₯ + 2 π‘₯ βˆ’ 5 = 0 2 .

  • A π‘₯ = βˆ’ 4 or 2
  • B π‘₯ = βˆ’ 3 or 1
  • C π‘₯ = βˆ’ 3 . 5 or 1.5