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Notes #___ 8.4 The Quadratic Formula. Quadratic Formula. For any quadratic equation:. Vocabulary. discriminant : b 2 – 4 ac determines the type and number of roots of a quadratic equation. Ex 1. Find the discriminant and describe the number and type of roots. Ex 2.
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Quadratic Formula For any quadratic equation:
Vocabulary discriminant:b2 – 4ac determines the type and number of roots of a quadratic equation
Ex 1 Find the discriminant and describe the number and type of roots.
Ex 2 Find the discriminant and describe the number and type of roots.
Ex 3 Find the discriminant and describe the number and type of roots.
Ex 4 Find the discriminant and describe the number and type of roots.
Steps to Solving • Set equation equal to zero • Identify a, b & c • Plug in all known values in the QF • Simplify (PEMDAS) & solve for the variable • Check your solution(s)
Ex 5 Solve
Ex 6 Solve
Ex 7 Solve
Ex 8 Solve