Crystal earns $4.50 per hour mowing lawns. write a rule to describe how the amount of money m earned is a function of the number of hours h spent mowing lawns. how much does crystal earn if she works 3 hours and 45 minutes?

picture below

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.