Final answer:
The slopes and y-intercepts of the three graphs in Figure A1 are different for each graph.
Step-by-step explanation:
The correct answer is D) Both the slopes and y-intercepts are different for each graph.
In Figure A1, the slope is 3 and the y-intercept is 9. In the other two parts, both the slope and y-intercept are different. Therefore, none of the graphs have the same slope and y-intercept.