Section 4.7 – Quadratic Formula

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Presentation transcript:

Section 4.7 – Quadratic Formula Objective: Solve quadratics by the quadratic formula EQ: What’s the solution to any quadratic equation?

Essential Understandings Quadratic Formula (the general solution) If then

Ex. 1 – Solve by quadratic formula

Ex. 2 – Solve by quadratic formula

Essential Understandings Discriminant (pg 243) If it is positive 2 real zeros If it is equal to zero 1 real zero If it is negative 0 real zeros (2 complex)

Ex. 3 – What is the number of real solutions of

HMW pp. 244 – 247 11, 25, 38, 41, 78, 79, 82, 88, 67, 76