Which of the following choices represents the graph of the equation f(x) = -3x^2+ 1 O A. Parabola that opens up
O B. Parabola that opens down
o C. Parabola that opens to the left
O D. Parabola that opens to the right

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.