This is an experiment of sorts, answer this IQ test level question.
9=72
8=56
7=42
6=30
5=20
3=?

Which shows the pre image of triangle xyz

7.(03.01 lc)which set represents the range of the function shown? {(-1, 5), (2,8), (5, 3), 13, -4)} (5 points){-1, 2, 5, 13){(5, -1), (8, 2), (3,5), (-4, 13)){-4, 3, 5, 8}{-4, -1, 2, 3, 5, 5, 8, 13}

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