shelby is swimming laps at greengate pool. she starts in her lane at one end of the pool and swims her first…

shelby is swimming laps at greengate pool. she starts in her lane at one end of the pool and swims her first back - and - forth lap using the butterfly stroke. then, she does one slower lap of the backstroke. which graph could show shelbys distance from her starting position over time?
Answer
Explanation:
Step1: Analyze the first lap
She starts at one - end of the pool and does a back - and - forth lap using the butterfly stroke. Her distance from the starting position first increases as she swims to the other end of the pool, then decreases as she swims back.
Step2: Analyze the second lap
She does a slower lap using the backstroke. The slope of the distance - time graph for this lap should be less steep compared to the first lap (since she is slower), but the pattern of distance increasing then decreasing as she goes to the other end and back remains the same.
Step3: Check the graphs
The graph should have two sets of "up - and - down" patterns where the second "up - and - down" has a less steep slope.
Answer:
The graph that shows a steeper "up - and - down" pattern for the first lap and a less steep "up - and - down" pattern for the second lap (while maintaining the correct distance - time relationship of increasing then decreasing for each lap) is the correct one. Without specific labels on the graphs, it's not possible to identify a specific letter - named graph, but the described characteristics should be used to pick the right one from the given options.