You are riding your bike along a trail at a constant rate. The trail has markers every tenth of a mile. The table below gives your position s(t) along the trail with respect to the mile markers after...

You are riding your bike along a trail at a constant rate.  The trail has markers every tenth of a mile.

The table below gives your position s(t) along the trail with respect to the mile markers after t minutes of biking.  (Assume your position along the trail is a linear function of the number or minutes that you have been biking.)

1. a)  Find the marker where you started your bike ride.

 Blank 1. Calculate the answer by read surrounding text. mile marker

1. b)  You end your ride at the 15.4 mile marker.  How many minutes did you ride your bike?

 Blank 2. Calculate the answer by read surrounding text. minutes