Final answer:
The variable ratio reinforcement schedule has a super fast and steep line on a graph.
Step-by-step explanation:
The reinforcement schedule that has a super fast and steep line on a graph is the variable ratio schedule. This schedule is unpredictable and yields high and steady response rates, with little if any pause after reinforcement. It is often compared to a gambler's behavior, where the person continues to perform an action in anticipation of a reward, even though the reward is unpredictable.