24 x 21 is 504. to make a model, just make it 24 x 21 (length x width)
Check the picture below.
now, we know the directrix is at y = 1, and the focus point is at 1,3, well, notice the picture, the distance between those fellows is just 2 units.
the vertex is half-way between those fellows, therefore, the vertex will be at 1,2.
the distance "p", from the vertex to either the directrix or focus, is really just 1 unit. Since the focus point is above the directrix, is a vertical parabola, and it opens upwards, like in the picture, and since it opens up, the "p" value is positive, or +1.
-3(-4y+3) +7y
Expand
12y-9+7y
Add like terms
19y-9
Answer:
The correct answer should be B.
I hope this helps!
-Mikayla
Beads,hard bracelets ,tops to containers,and if you have to cars just take off the wheels.