Question
John drained the water in his tub. The amount of water left in the tub (in liters) as a function of time (in minutes) is graphed.
Identify the out variable?
- Water
- Time
- Minutes
- Cannot say
Hint:
John drained the water in his tub. In that given graph we can look x-axis as a time and y-axis as a water. We need to focus on graph whether that is given that the find out the output variable of graph
The correct answer is: Water
Here we need to find the which is the output variable.
Firstly, in a graph x-axis which is also horizontal axis is the time of graph.
And , y-axis is which is vertical axis is the Amount of water at a time t minutes.
And we know that along the x-axis change in time comes to change in water.
At first water is 360 liter,
After 5 minutes its completely drained.
So in time vs water , time is input variable . Because change in time cause the draining of water
And the output variable is water. Its depend on time.
The correct answer is water (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.
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