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Big Ideas Math: Modeling Real Life, Grade 8

BI

Big Ideas Math: Modeling Real Life, Grade 8 View details

1. Exponents

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Exercise 13 Page 323

An exponent is a number or expression written above a number indicating how many times the number is being multiplied by itself.

(- 4)^3 y^2

Practice makes perfect

We want to write the given expression using exponents. Recall that an exponent is a number or expression written above a number indicating how many times that number is being multiplied by itself. Let's consider the given expression.

(- 4) * (- 4) * (- 4)_(3times) * y * y_(2times) We can see that the factor (- 4) is being multiplied by itself three times and that the factor y is being multiplied by itself two times. (- 4)^3 y^2

Subchapter links

Try It p.320-321

Self-Assessment for Concepts & Skills p.321

Self-Assessment for Problem Solving p.322

Review & Refresh p.323

Concepts, Skills, & Problem Solving p.323-324