Abeka Algebra I Quiz 1
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Questions and Answers

Which of the following is the numeric coefficient for $3x^4y^2$?

  • 3 (correct)
  • 2
  • 1
  • 4
  • In the expression $2b + 18yz^2$, which of the following correctly describes $z$?

  • Exponent
  • Variable
  • Coefficient
  • Base (correct)
  • Which of the following is NOT a correct way to show multiplication in algebra?

  • $2 x X$ (correct)
  • $2(3)$
  • $2 imes 3$
  • $2 * 3$
  • Which of the following operations is done first in order of operations?

    <p>Exponentiation</p> Signup and view all the answers

    Which of the following states all the factors of $13x^2yz$?

    <p>$13, x^2, y, z$</p> Signup and view all the answers

    What is the result of $4x - 2y - 3z^4$ when $x=3$, $y=2$, and $z=1$?

    <p>1</p> Signup and view all the answers

    What is the simplification of $\frac{3xy^2}{7x}$?

    <p>3/7y^2</p> Signup and view all the answers

    What is the result of $6 + 2 \times 8 - 4 \div 2$?

    <p>20</p> Signup and view all the answers

    What is the result of $8 - \frac{18 - 2}{24} \div 3$?

    <p>6</p> Signup and view all the answers

    What is the correct result of $7(2 + 30 - 4 \times 2^2)$?

    <p>19</p> Signup and view all the answers

    Study Notes

    Algebraic Concepts and Terminology

    • The numeric coefficient in the expression 3x⁴y² is identified as 3, emphasizing the number in front of the variables.
    • In the expression 2b + 18yz², 'z' is categorized as a base because it is the variable raised to a power (the exponent).
    • Common ways to express multiplication in algebra include using the multiplication sign (×), parentheses, or juxtaposition. '2 x X' is highlighted as an incorrect form.
    • The exponent denotes the operation performed first according to the order of operations, which is critical for solving algebraic expressions correctly.
    • The expression 13x²yz has factors of 13, x², y, and z detailed, showcasing component factors in polynomial expressions.

    Evaluation and Simplification

    • The expression 4x - 2y - 3z⁴ simplifies to a value of 3; this represents evaluating simple polynomial expressions.
    • The rational expression 3xy²/7x simplifies down mathematically to 1, demonstrating simplification techniques in algebra involving fractions.
    • The expression 6 + 2 × 8 - 4 ÷ 2 evaluates to 20 through the correct application of the order of operations (PEMDAS/BODMAS).
    • The expression 8 - 18 - 2/24 ÷ 3 simplifies to a value of 6, highlighting the process of proper calculation within a multi-step expression.
    • Evaluating the expression 7(2 + 30 - 4 × 2²) results in 19, further illustrating how to handle parentheses and exponentiation before proceeding with multiplication and addition.

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    Description

    Test your knowledge of algebra concepts with this quiz based on the Abeka Algebra I curriculum. It covers topics like coefficients, bases, and exponents. Perfect for reinforcing what you've learned in class!

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