Use coordinates to check a triangle or a quadrilateral

Answer Key - Grade 10 Math Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

1. 1.

   Tala draws a shape on graph paper. One side runs from D(1, 3) to F(4, 9). What is the slope of side DF?

   2
2. 2.

   Zee plots a shape on a grid map. One side runs from D(2, -1) to F(6, 5). What is the slope of side DF?

   3/2
3. 3.

   Ari plans a kite frame on a grid. One side runs from D(-3, 1) to F(5, 7). What is the slope of side DF?

   3/4
4. 4.

   Bo designs a quilt patch on a grid. One side runs from D(1, 6) to F(4, 0). What is the slope of side DF?

   -2
5. 5.

   Esme plans a rug pattern on a grid. One side runs from D(-2, 3) to F(4, -1). What is the slope of side DF?

   -2/3
6. 6.

   Jun designs a window pane on a grid. One side runs from D(0, 5) to F(5, 1). What is the slope of side DF?

   -4/5
7. 7.

   Kira plans a tabletop on a grid. Side DF has slope 3, and side FG has slope -3. Are the sides parallel, perpendicular or neither?

   • parallel
   • neither
   • perpendicular
8. 8.

   Milo draws a shape on graph paper. Side DF has slope 2/3, and side FG has slope 3/2. Are the sides parallel, perpendicular or neither?

   • neither
   • perpendicular
   • parallel
9. 9.

   Noah plots a shape on a grid map. Side DF has slope -5/2, and side FG has slope -2/5. Are the sides parallel, perpendicular or neither?

   • neither
   • parallel
   • perpendicular
10. 10.

    Pia plans a kite frame on a grid. Side DF has slope 2, and side FG has slope -1/2. Are the sides parallel, perpendicular or neither?

    • neither
    • perpendicular
    • parallel