a. this graph is a function whose domain is the set of {3}
b. this graph is not a function because the value x equals three assigned to more than one y-value
c. this graph is a function because the value of x is the same for every value of y
d. this graph is a function whose range is the set {3}

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.

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are

answer: 60%

explanation:

÷

= 60%