Digits, Grade 8, Volume 2, Homework Helper
  • 6. Ceramics A friend is helping you cut mosaic tiles. Your friend brings you four tiles. The tiles need to have the same slope as the equation y equals , 2 fifths , x . Select each tile you can use.

    Triangular tiles.

    Triangular tiles.

    Triangular tiles.

    Triangular tiles.

  • 7. Multiple Representations

    • a. Identify the slope triangle that can be used to find the slope of the line with the equation y equals , 1 half , x plus 7 .

      Slope triangles.

      Slope triangles.

      Slope triangles.

    • b. Draw two other triangles that can be used to find the slope of the line.

  • 8. Think About the Process

    • a. What is the first step to find the ratio of the rise to the run of the given triangle?

      A slope triangle with vertices (0, 0), (12, 0), and (12, 4).

    • b. What is the ratio of the rise to the run of the given triangle?

    • c. Draw a graph that shows the triangle that is the image of the given triangle after a dilation with center (0, 0) and a scale factor of 1 fourth .

    • d. What do you know about the ratio of the rise to the run of the image triangle?

  • 9. Think About the Process The slope of the given line is 1 third . One slope triangle is shown. Another slope triangle with a ratio of the rise to the run of 1 third has vertices at (9, 2) and (12, 2).

    A slope triangle with vertices (0, −1), (9, −1), and (9, 2).

    • a. What do you know about the second triangle?

    • b. Find the coordinates of the third vertex.


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Table of Contents

Digits, Grade 8, Volume 2, Homework Helper Unit D: Two-Dimensional Shapes Unit E: Measurement and Data Unit F: Personal Financial Literacy Unit G: Step-Up Lessons English/Spanish Glossary Formulas Math Symbols Formulas Measures Properties