For the answer to the question above, 
1b. Is y = 0.20927x^2 + 3.587x + -0.0029068 
1c. (0,0) and (17.14,0) 
1.d No 
2a. (10,3) root (I'm not sure on this number but everything else is correct) 
2b. (-3,-49) vertex 
2c. (0,-40) y-intercept 
2d. (4,0) root 
I hope this helps