9. It took Ryan less time to hike down than it did to hike up. Ernest thinks that was because Ryan jogged down the same trail he went up. Emma thinks the trail down was steeper than the trail up. Whose hypothesis is valid: Ernest's, Emma's, or both? Write a detailed explanation of whether each hypothesis is an acceptable interpretation of the graph. (4 points)
Ernest's hypothesis (jogged down same trail):

Emma's hypothesis (steeper trail


please help me as soon as possible it's due in one hour please ​