Answer:
its B
Step-by-step explanation:
Answer:
The value of a will be 
Step-by-step explanation:
Start by graphing the parabola and the three points of the triangle. These points are at intersections of y=a(x-1)(x-4) and the axes
so the y = 0 points are (1,0) and (4,0).
The x = 0 intersection is when y=a(-1)(-4) or (0,4a)
The base and height of this triangle are
The base would be the distance between the y=0 intersections and the height would be the y value of the other vertex.
Hence, base=3 units and height = 4a units. Thus, area can be calculated as


∵ the parabola opens downward therefore a will be negative.
hence, 
Explanation:
Abraham Lincoln recognized the importance of the city on a 200-foot bluff just above Colorado river. He said, "Vicksburg is the best approach, the war could never be decided to bring to a close until another key is in our wallet." trying to capture Vicksburg would break the Trans-Mississippi confederate states from the east of the Mississippi as well as open the waterway to northern congestion along its total duration.