Unit 1, Lesson 4

Coordinate Moves

Accelerated 7

Practice

1. Problem 1

   Student Task Statement

   1. Here are some points:

      

      Points A, B and C on a coordinate plane, origin O. Horizontal axis scale negative 10 to 8 by 1’s. Vertical axis scale negative 4 to 6 by 1’s. The coordinates of the points are A(negative 6 comma 5), B(3 comma 2) and C(negative 1 comma 0).

      What are the coordinates of , , and after a translation to the right by 4 units and up 1 unit? Plot these points on the grid, and label them , and .

   2. Here are some points:

      

      Points D, E and F on a coordinate plane, origin O. Horizontal axis scale negative 5 to 5 by 1’s. Vertical axis scale negative 2 to 3 by 1’s. The coordinates of the points are D(negative 3 comma 3), E(5 comma 0) and F(2 comma negative 2).

      What are the coordinates of , , and after a reflection over the axis? Plot these points on the grid, and label them , and .

   3. Here are some points:

      

      Points G, H and I on a coordinate plane, origin O. Horizontal axis scale negative 5 to 5 by 1’s. Vertical axis scale negative 3 to 5 by 1’s. The coordinates of the points are G(negative 1 comma 3), H(negative 4 comma 0) and I(3 comma negative 2).

      What are the coordinates of , , and after a rotation about by clockwise? Plot these points on the grid, and label them , and .