Applying slope intercept

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.

i dont know

step-by-step explanation:

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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3x-x+2=4 i think that's is the answer, and i hope it you