TEKS: Chapter 111. Mathematics See All Teacher Resources

111.34.b.7

(7) Dimensionality and the geometry of location. The student understands that coordinate systems provide convenient and efficient ways of representing geometric figures and uses them accordingly. The student is expected to:

• (A) use one- and two-dimensional coordinate systems to represent points, lines, rays, line segments, and figures;

• (B) use slopes and equations of lines to investigate geometric relationships, including parallel lines, perpendicular lines, and special segments of triangles and other polygons; and

• (C) derive and use formulas involving length, slope, and midpoint.