1. all the information in the picture.
2. alright. alright.
7. 

1. True/False (1) A quadratic regression model is a special type of a polynomial regression model. )7 = be +b1x+b2x2 (2) The curve representing the regression equation has a Ushape if '52\"). (3) The t ofthe regression equations )3 = 5:0 + blx + b2x2 and f2 = 20 + blx + bzx2 + b3):3 can be compared using the coefcient of determination R2