If you are at mile marker 100 when you start your trip and mike marker 300 four hours later, where were you after 3 hours (assuming a constant speed)?

After 3 hours, you will be on 450 mile marker.

Step-by-step explanation:

step 1: At start, the number in the mile marker is 100

step 2: After 4 hours, the number in the mile marker is 300

step 3: The difference of 300-100= 200. In 4 hours you crossed 200 mile markers.

step 4: Therefore, for 1 hour you can cross= 200/4= 50 mile markers.

For 3 hours, the number of mile markers crossed= 3*50= 150 mile markers.

step 5: After 3 hours, the number in the mile marker will be= 300+150= 450

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step-by-step explanation:

the x's and the y's both go up the same amount each time, therefore it will be a linear function because it will go in a straight line when drawn on a graph.

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step-by-step explanation: