The figure shows a shape ABC and its mirror image A<sub>1</sub>B<sub>1</sub>C<sub>1</sub> across the horizontal axis (X-axis). The coordinate transformation matrix that maps ABC to A<sub>1</sub>B<sub>1</sub>C<sub>1</sub> is<br><img src="/images/question-image/engineering-maths/linear-algebra/1689156870-the-figure-shows-a-shape-abc.png" title="Linear Algebra mcq question image" alt="Linear Algebra mcq question image">