Answer:
question 16:y=3 question 17:B, or -3x^2-2x+1
Step-by-step explanation:
For question 16, all you have to do is graph it. sorry if i am a bit vague here, but trust me, it is y=3
For question 17, you have to look at the first number, or a, and if it is negative, it opens down, and if it is positive, it opens up.