1. 4.5 “Square Roots”

2. More Examples

3. Rationalizing the Denominator

4. Rationalizing Examples

5. Rationalizing Examples with Conjugates

6. Solve a Quadratic Equation Solve the following: 20. 3x 2 + 5 = 41 Steps: 1.Isolate the squared term 2.Take the square root of each side 3.Simplify the radical 4.Answer should be ±

7. Solving Quadratic Equation Examples 21. 5x 2 = 80 22. z 2 – 7 = 29 23. 3(x – 2) 2 = 72

8. Word Problems When an object is dropped, its height (in feet) above the ground after t seconds can be modeled by the function… h = -16t 2 + h 0 h 0 = initial height (in feet) t = time (in seconds) For a science project, students must design a container that prevents an egg from breaking when dropped from 50 feet. How long does it take it to hit the ground?