Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Determine the value of algebraic expression |
Grade: 7-a Lesson: S2-L5 |
Explanation: The best way to understand algebra is by looking at some examples. Take turns and read each example for easy understanding. |
Examples:
1. Determine the value of expression \$sqrt(b^2) - 1\$ when b = 9.
Step 1a
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Given expression. |
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Explanation:
Given expression \$sqrt(b^2) - 1\$ is an algebraic expression in variable b and value of b = 9. |
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Step 1b
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Substitute the value of variable |
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Explanation: Substitute the value of variable b = 9 in the expression. \$sqrt(b^2) - 1\$ \$=> sqrt(9^2) - 1\$ |
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Step 1c
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Perform the opreartions among the terms to determine the value of expression. |
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Explanation:
Perform operations among the terms \$=> sqrt(9^2) - 1\$ \$=> 9 - 1\$ \$=> 8 \$ |
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