Presentation on theme: "Goals: To solve quadratic equations by using the Quadratic Formula."— Presentation transcript:
1 Lesson 10.4: Solving Quadratic Equations Using the Quadratic Formula, pg. 546 Goals:To solve quadratic equations by using the Quadratic Formula.To use the discriminant to determine the number and type of roots of a quadratic equation.
2 Quadratic FormulaThe solutions of a quadratic equation of the form ax² + bx + c = 0, where a ≠ 0, are given by the following formula.To solve quadratic equations using the quadratic formula, the equation must be set equal to ZERO
3 Example 1: Solve by using the quadratic formula. 1. x² - 2x – 35 = 0
4 Round to the nearest tenth if necessary. 2. 15x² - 8x = 4