Answer:
To translate a shape 1 unit left and 1 unit up, you would subtract 1 from the x-coordinates of each vertex to move left and add 1 to the y-coordinates of each vertex to move up.
If you have the coordinates of the original vertices, you can apply this translation to get the coordinates of the new vertices:
For example, let's say we have a triangle with vertices at (2, 3), (4, 1), and (1, 5). To translate this triangle 1 unit left and 1 unit up, we would subtract 1 from the x-coordinates and add 1 to the y-coordinates of each vertex:
Vertex (2, 3) becomes (2 - 1, 3 + 1) = (1, 4)
Vertex (4, 1) becomes (4 - 1, 1 + 1) = (3, 2)
Vertex (1, 5) becomes (1 - 1, 5 + 1) = (0, 6)
Therefore, the new vertices of the triangle after a translation 1 unit left and 1 unit up are (1, 4), (3, 2), and (0, 6).
Explanation: