Complete the following table using the equation: y = 2 x squared x
-2
-1
0
1
2
y

Plot the points on a graph and determine which graph best represents the equation.
Graph A
On a coordinate plane, a parabola opens up and goes through (1, 3), has a vertex at (0, 0), and goes through (1, 3).
Graph B
On a coordinate plane, a parabola opens down and goes through (negative 1, negative 2), has a vertex at (0, 0), and goes through (1, negative 2).
a.
8, 2, 0, 2, 8; Graph A
b.
-8, -2, 0, -2, -8; Graph A
c.
8, 2, 0, 2, 8; Graph B
d.
-8, -2, 0, -2, -8; Graph B

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)