**Algebraic representations of translations worksheet :**

Worksheet given in this section is much useful to the students who would like to practice problems on translations.

We can use the rules shown in the table which describe how coordinates change when a figure is translated right, left, up, and down on the coordinate plane.

1. Triangle PQR has the vertices P(1, 11), Q(1, 7) and R(3, 7). Graph the triangle PQR and its image after a translation of 7 units to the right and 5 unit down.

2. Trapezoid ABCD has the vertices A (1, 0), B(4, 0), C(4, -4) and D(0, -4). Graph the trapezoid ABCD and its image after a translation of 5 units to the left and 3 units up.

3. Triangle ABC has the vertices A (-4, 1), B(0, -1) and C(-2, -3). Graph the triangle ABC and its image after a translation of 4 units to the right and 1 unit up.

**Problem 1 :**

Triangle PQR has the vertices P(1, 11), Q(1, 7) and R(3, 7). Graph the triangle PQR and its image after a translation of 7 units to the right and 5 unit down.

**Solution : **

**Step 1 :**

**Let P', Q' and R' be the vertices of the translated figure.**

Since there is a translation of 7 units to the right and 5 units down, we have to add 7 to x-coordinate and subtract 5 from y-coordinate of each vertex.

P' ------> (1+7, 11-5) = (8, 6)

Q' ------> (1+7, 7-5) = (8, 2)

R' ------> (3+7, 7-5) = (10, 2)

**Step 2 :**

Sketch the triangle PQR and its image P'Q'R'.

**Problem 2 :**

Trapezoid ABCD has the vertices A (1, 0), B(4, 0), C(4, -4) and D(0, -4). Graph the trapezoid ABCD and its image after a translation of 5 units to the left and 3 units up.

**Solution : **

**Step 1 :**

**Let A', B', C' and D' be the vertices of the translated figure.**

Since there is a translation of 5 units to the left and 3 units up, we have to subtract 5 from x-coordinate and add 3 to y-coordinate of each vertex.

A' ------> (1-5, 0+3) = (-4, 3)

B' ------> (4-5, 0+3) = (-1, 3)

C' ------> (4-5, -4+3) = (-1, -1)

D' ------> (0-5, -4+3) = (-5, -1)

**Step 2 :**

Sketch the trapezoid ABCD and its image A'B'C'D'.

**Problem 3 :**

Triangle ABC has the vertices A (-4, 1), B(0, -1) and C(-2, -3). Graph the triangle ABC and its image after a translation of 4 units to the right and 1 unit up.

**Solution : **

**Step 1 :**

**Let A', B' and C' be the vertices of the translated figure.**

Since there is a translation of 4 units to the right and 1 unit up, we have to add 4 to x-coordinate and add 1 to y-coordinate of each vertex.

A' ------> (-4+4, 1+1) = (0, 2)

B' ------> (0+4, -1+1) = (4, 0)

C' ------> (-2+4, -3+1) = (2, -2)

**Step 2 :**

Sketch the triangle ABC and its image A'B'C'.

After having gone through the stuff given above, we hope that the students would have understood, how to translate a figure.

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