A point has the coordinates (0, k). Which reflection of the point will produce an image at the same coordinates, (0, k)?
O a reflection of the point across the X-axis
O a reflection of the point across the y-axis
O a reflection of the point across the line y = x
O a reflection of the point across the line y = -x

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?