8th Grade Math Vocabulary

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Across
  1. 2. Applying the Pythagorean theorem to find distances between points in the coordinate plane
  2. 3. Solving problems involving two linear equations with two variables, both algebraically and via graphing for solutions or determining no solution (e.g., 3x + 2y = 5 vs. 3x + 2y = 6)
  3. 6. Using root symbols to represent solutions for equations like x2=px^2 = px2=p or x3=px^3 = px3=p and evaluating small perfect squares or cubes; recognizing that 2\sqrt{2}2​ is irrational
  4. 8. Understanding relationships between proportional relationships, graphing proportional data as straight lines (slope as unit rate), using similar triangles to explain slope consistency, and writing equations like y=mxy = mxy=mx or y=mx+by = mx + by=mx+b
  5. 9. Writing and interpreting very large or very small numbers in the form "single digit × power of 10" (e.g., world population ≈ 7 × 10⁹)
Down
  1. 1. – Verifying that these transformations preserve shape (lines to lines, segments to equal segments, angles to angles) experimentally
  2. 4. Using properties of integer exponents to create equivalent expressions (e.g., 32×3−5=3−33^2 \times 3^{-5} = 3^{-3}32×3−5=3−3)
  3. 5. Stating and using the formulas for volumes of these three-dimensional figures in real-world mathematical problems
  4. 7. Two figures are congruent if one can be obtained from the other through rotations, reflections, or translations