The answer is N(-3,3) the formula of reflecting across the x-axis is (x,-y)
Its called a octagon, hope that helps
Try to use mathway its very helpful
The answer should be -141
The bottom right.
The line best fit is usually the line that follows the trend of dots in the scatter plot. In the other 3, you can tell that there seems to be no trend between either the line or the dots.
The bottom right one has a line pretty much right through the middle of the scattered dots and follows the trend.
