Slide 8 left and 5 down

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?