Mathematics
Grade-8
Easy

Question

Mike, who is a bicyclist is riding along a flat road. He then goes downhill. Can you identify the output variable when you represent the distance traveled over time with a qualitative graph?

  1. Distance
  2. Time
  3. Road
  4. Bicycle

hintHint:

Mike riding bicycle along straight road , then he goes downhill. Here a graph from distance vs time. Where distance in y-axis and time along x-axis. Time is independent variable and distance is dependent variable , its change by input time.

The correct answer is: Distance


    Here , we have to find the input variable in distance vs time graph.
    Firstly, A graph having x-axis is time and y-axis is distance.

    Now,
    The time is independent of distance ,
    And distance is time dependent.
    graph
    If we increase time the distance would be decrease .
    So the input variable would be time and output variable would be distance .
    Therefore, The output variable of this qualitative graph is distance.
    The correct answer is distance ( option (a)).

    The input variable are change or measured along the horizontal axis or x-axis and the output variable along the vertical axis or y-axis. And here distance on which is dependent variable because it is at y-axis.

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