4.5 “Square Roots”. More Examples Rationalizing the Denominator.

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Presentation transcript:

4.5 “Square Roots”

More Examples

Rationalizing the Denominator

Rationalizing Examples

Rationalizing Examples with Conjugates

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

Solving Quadratic Equation Examples 21. 5x 2 = z 2 – 7 = (x – 2) 2 = 72

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?