Solution
Given the graphs below
For the graph of figure A and B:
Figure A and figure B are congruent.
Hence, yes they are congruent.
The transformation that map figure A onto figure B is to rotate figure A clockwise 90° about the origin.
For the graph of C and D:
Figure C and figure D are congruent.
Hence, yes they are congruent.
The transformation that map figure C onto figure D is reflect figure C over the y-axis