Name
Date
LESSON
Practice B
6-1
Polynomials
Class
Identify the degree of each monomial.
1. 6x
2
2. 3p 3m 4
3. 2x 8y 3
Rewrite each polynomial in standard form. Then identify the leading
coefficient, degree, and number of terms. Name the polynomial.
3
2
4. 6 ⫹ 7x ⫺ 4x ⫹ x
5. x 2 ⫺ 3 ⫹ 2x 5 ⫹ 7x 4 ⫺ 12x
Add or subtract. Write your answer in standard form.
2
3
2
6. 2x ⫺ 2x ⫹ 6 ⫹ 11x ⫺ x ⫺ 2 ⫹ 5x 7. x 2 ⫺ 8 ⫺ 3x 3 ⫹ 6x ⫺ 4 ⫹ 9x 2 8. 5x 4 ⫹ x 2 ⫹ 7 ⫹ 9x 2 ⫺ 2x 4 ⫹ x 3 9. 12x 2 ⫹ x ⫺ 6 ⫺ 9x 2 ⫹ x 7 ⫺ 8x Graph each polynomial function on a calculator. Describe the graph,
and identify the number of real zeros.
3
2
10. f x ⫽ x ⫹ 2x ⫺ 3
11. f x ⫽ x 4 ⫺ 5x 2 ⫹ 1
Solve.
12. The height, h, in feet, of a baseball after being struck by a bat can be approximated
2
by h t ⫽ ⫺16t ⫹ 100t ⫹ 5, where t is measured in seconds.
a. Evaluate h t for t ⫽ 3 and t ⫽ 5.
b. Describe what the values of the function from part a represent.
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
4
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