Observe the table:
\Quadrilateral
vertices are
and
.
Quadrilateral
vertices are
and
.
a.
\Find coordinates of
.
Step 1:
\Write a matrix equation.
\Let
and
represent the coordinates of
and
.
Write the vertex matrix for quadrilateral
is
.
Write the image vertex matrix for quadrilateral
is
.
Step 2:
\Adding the translation matrix
.
.
Add corresponding elements.
\
.
Equate the corresponding elements first columns and solve for
and
.
.
.
Step 3:
\Substitute
and
in second columns corresponding elements and solve for
and
.
.
.
The image vertex
is
.
b.
\Find coordinates of
.
Equate the corresponding elements third columns and solve for
and
.


Substitute
and
in third columns corresponding elements and solve for
and
.

.
The vertex
is
.
Chek solution for
and
-values.
Equate the corresponding elements fourth columns and check for
and
.
and
.
Case (i):
\
(Substitute
)
(Multiply)
(Add:
)
Case (ii):
\
(Substitute
) \ \
(Add:
)
a.The image vertex
is
.
b. The image vertex
is
.