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Presentation transcript:

Class Greeting

Lesson 9-1c Roots and Radicals

Objective: The student will solve problems which involve roots and radicals based on concepts discussed in the previous lessons.

Evaluate the expression for the given value of the variables Evaluate the expression for the given value of the variables. If not possible state the reason. Round the answer to two decimal places. x = 3, y = -1 Answer: 4

Evaluate the expression for the given value of the variables Evaluate the expression for the given value of the variables. If not possible state the reason. Round the answer to two decimal places. x = 6, y = -6 Answer: 6

Evaluate the expression for the given value of the variables Evaluate the expression for the given value of the variables. If not possible state the reason. Round the answer to two decimal places. x = 3, z = 1 Answer: Impossible, it is IMAGINARY.

Evaluate the expression for the given value of the variables Evaluate the expression for the given value of the variables. If not possible state the reason. Round the answer to two decimal places. x = 4, z = 3 Answer: Impossible, the square root of a negative number is IMAGINARY.

Evaluate the expression for the given value of the variables Evaluate the expression for the given value of the variables. If not possible state the reason. Round the answer to the nearest hundredth. a = -2, b = 7, c = 3 1. GUESS 2. DIVIDE 3. AVERAGE 4. ROUND Answer: 8.54

Evaluate the expression for the given value of the variables Evaluate the expression for the given value of the variables. If not possible state the reason. Round the answer to the nearest hundredth. a = -3, b = 6, c = 2 1. GUESS 2. DIVIDE 3. AVERAGE 4. ROUND Answer: 7.75

Lesson Summary: Objective: The student will solve problems which involve roots and radicals based on concepts discussed in the previous lessons.

Preview of the next Lesson: Objective: The student will learn how to simplify radicals containing common factors and variable factors using the product rule for radicals.

Kahoot!

Stand Up Please

Review: 9.1b Mini-Quiz Approximate square roots of each number to the nearest hundredth. - 12 517.8 15/2 4 Classify each number as rational or irrational.