Algebra 1 S2 Vocab Review

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Across
  1. 5. A technique used to solve systems of equations by adding or subtracting equations to eliminate one variable.
  2. 6. A formula used to find the roots (solutions) of a quadratic equation, and contains a plus/minus symbol.).
  3. 7. A set of two or more equations involving the same variables.
  4. 8. The U-shaped graph of a quadratic function.
  5. 11. A function where the variable is in the exponent. It often represents growth or decay.
  6. 12. An expression containing a variable raised to the second power (quadratic term), such as \(ax^2 + bx + c\).
  7. 16. To express an expression as the product of its factors. For example, \(x^2 - 4\) can be factored as \((x - 2)(x + 2)\).
  8. 19. The highest power of the variable in a polynomial expression.
  9. 20. In a quadratic equation, it's the part of the quadratic formula under the square root symbol. It helps determine the nature of the roots (real, imaginary, equal, or distinct).
Down
  1. 1. The expression under the radical symbol in a radical expression.
  2. 2. A technique used to solve systems of equations by solving one equation for one variable and substituting it into the other equation.
  3. 3. A property stating that if the product of two factors is zero, then at least one of the factors must be zero.
  4. 4. The values of the variable that make the polynomial function equal to zero. They are also called roots or solutions.
  5. 9. An exponent that can be expressed as a fraction, where the numerator is the power to which the base is raised, and the denominator is the root.
  6. 10. The highest or lowest point on the graph of a quadratic function. It's the point where the axis of symmetry intersects the parabola.
  7. 13. An expression that includes a square root or other nth root.
  8. 14. A number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.
  9. 15. In a graph of a quadratic function, it's a vertical line that divides the parabola into two symmetrical halves.
  10. 17. An expression with one or more terms, each consisting of a variable raised to a non-negative integer exponent and multiplied by a coefficient.
  11. 18. In algebra, it refers to expressions that differ only in the sign between their terms, especially related to complex numbers.