The cut out number is 100m ( Breanne's friend lives 100 m from Breanne's home) As well, in addition to the graph the second question is how would you solve it using calculus.

1. Breanne walks to her friend's house in 30 seconds, before knocking on the door she its for 5 seconds and realizes that she forgot her backpack at home. Breanne's friend lives m away from Breanne's home. She runs back home to pick up the backpack in 15 seconds, walks back to her friend's house in 40 seconds. Construct a distance-time graph to esent this situation. 100 90 80