Is anyone good with Trigonometry word problems?​

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Which point has an coordinates of (2,0) ? a