Grades 9-10 Video Solutions 2023-2023_9-10

Video Transcription

Video Summary

The speed-time graph representing Katie's journey should have the following characteristics: four stopping points, initial faster speed due to running, slower walking speed at the end, and two consistent middle speeds depicting the subway's constant speed, which is faster than Katie's running speed. Among the options analyzed, graph D matches these criteria. It shows four stops, begins with a higher speed representing running, has consistent middle speeds for the subway ride, and ends with a slower speed for walking to school. Thus, option D is the correct representation of Katie’s journey.

Keywords

speed-time graph

Katie's journey

subway speed

running speed

walking speed