Bryce wrote the linear regression equation (Y=1.123x-6.443 to predict arm span, y,of a person who is x inches tall Riley has an arm span of 67.5 inches. Which is the best prediction of riley's height? A:54.36
B:65.84
C:66.55
D:69.36

Which function has an inverse that is also a function? a.{(-4,3), (-2, 7), (-1,0), (4, -3), (11, -7)} b.{(-4, 6), (-2, 2), (-1, 6), (4,2), (11, 2)} c.{(-4,5), (-2, 9), (-1,8), (4, 8), (11,4)} d.{(-4,4), (-2, -1), (-1,0), (4, 1), (11, 1)}