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Estimate Roots Lesson #9 Pg. 241.

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Presentation on theme: "Estimate Roots Lesson #9 Pg. 241."— Presentation transcript:

1 Estimate Roots Lesson #9 Pg. 241

2 What You’ll Learn Estimate roots using a number line
Find the most appropriate approximation of square and cube roots

3 Estimate Square and Cube Roots
You know that is not a whole number because 8 is not a perfect square The number line below shows that is between 2 and 3 Since 8 is closer to 9 than 4, the best estimate for is 3 Actual Numbers Square Roots Above/Below Square Roots Closer to ? 2 2.25 2.5 2.75 3

4 Example Estimate to the nearest integer

5 Example Estimate to the nearest integer

6 Example Estimate to the nearest integer

7 Example Estimate to the nearest integer

8 Homework Group #1 Pg. 245-246 (1-8, 12, 13, 15-17, 19) Group #2
1 – 19 all

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