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The function D(h)= 25h+50 models the distance a train traveled from a station , in miles , h hours after crossing a bridge . what is the meaning of the x-intercept ?

ATrain cross the bridge two hours after leaving the station
BThe train station is located 2 miles from the bridge
CThe train station is 50 miles from the bridge
DThe train crossed a bridge every 50 miles

Verified Answer :

scme1702

We know that the value of x, the independent variable, is 0 at the x-intercept. In this case, time is the independent variable as distance traveled is dependent on it. Therefore, when time is equals to 0, we find that the distance was 50 miles. If the distance is being measured from the bridge, and the train is at the station at time = 0, then the train station is 50 miles from the bridge.

kaurnavjot507

Answer: We know that the value of x, the independent variable, is 0 at the x-intercept. In this case, time is the independent variable as distance traveled is dependent on it. Therefore, when time is equals to 0, we find that the distance was 50 miles. If the distance is being measured from the bridge, and the train is at the station at time = 0, then the train station is 50 miles from the bridge.

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