Jack and Jill are hiking on a mountain. Jack's hike is modeled by the linear equation d=0.7t+3 and Jill's hike is modeled by the linear equation d=−0.7t+3, where d is the distance, in miles, from the base of the mountain and t is the time, in hours, since the start of the hike. a. What is Jack's rate of change?

b. For Extra Credit, explain how Jack is hiking.

a. Jack's rate of change is 0.7 miles per hour

b. Jack is hiking upwards

Step-by-step explanation:

a. 0.7 is his slope (a.k.a change) 0.7 miles because that is how distance is being measured and t is the time in hours

b. since his slope is positive I am assuming that he is going upwards like (/) the line is raising

the correct answers i think are b. and d.

give me brainliest if it is correct!