Warm-Up 8-3: ACT SET 1.

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Presentation transcript:

Warm-Up 8-3: ACT SET 1

Lesson 8-3: The Quadratic Formula Objectives: Students will: Solve quadratic equations using the quadratic formula Find approximate values for solutions

Solving the Quadratic Equation: What are we solving for? Then can’t we solve the equation ax2 + bx + c = 0 for x? DO IT:

5 bonus points if you have it memorized tomorrow morning!!! Quadratic Formula 5 bonus points if you have it memorized tomorrow morning!!! Example 1 Example 2 Solve 5x2 + 6x + 1 = 0 Solve 5x2 + 6x + 2 = 0 Check for easy factoring still before QF

HW 95 Lesson 8-3 Quiz Approximating Solutions Be able to approximate values of radicals (using calculator) Example 3 Approximate solutions of 3x2 + 2x = 7 to the nearest hundredth. Lesson 8-3 Quiz HW 95