Because usually position is a function of time rather than the other way around. Changes in time result in changes in location. Changes in location do not cause changes in time.
independent
The independent variable, in this case time, is on the horizontal axis of a speed graph.
On a distance vs. time graph, time is usually the independent variable presented on the X axis in the Cartesian Coordinate System. The dependent variable would be distance, and would be presented on the Y axis.
The slope of a line on a position vs. time graph would represent the a velocity of the object being described.
The independent variable is the (x) axis or horizontal part of a graph. The dependant is the vertical (y) axis. The independent variable can change but the dependant can't, such as x=nightly sleep time and y=hours in 1 day.
Time is an independent variable because it is affected only by when you decide to stop to read its position (not affected by the position). However, time is a dependent variable since the time you record it affects its result. In simpler terms, independent variable is something you can change to alter the dependent variable. You can change the time (0s to 15s etc.) but you cannot change the position.
independent
The independent variable, in this case time, is on the horizontal axis of a speed graph.
A position time graph can show you velocity. As time changes, so does position, and the velocity of the object can be determined. For a speed time graph, you can derive acceleration. As time changes, so does velocity, and the acceleration of the object can be determined.If you are plotting velocity (speed) versus time, the slope is the acceleration.
On a distance vs. time graph, time is usually the independent variable presented on the X axis in the Cartesian Coordinate System. The dependent variable would be distance, and would be presented on the Y axis.
The slope of a line on a position vs. time graph would represent the a velocity of the object being described.
The independent variable (such as time) is places on the x-axis of a graph. Always place the things that will never change on the x-axis. The dependent variable is then placed on the y-axis. The difference between the independent and dependent variable is that the independent variable in an experient does not change it is what stays constent, it is what is used to measure the dependent variable. On the other hand the dependent variable is what the experiment is testing for and what depends on the independent variable.
The independent variable is the (x) axis or horizontal part of a graph. The dependant is the vertical (y) axis. The independent variable can change but the dependant can't, such as x=nightly sleep time and y=hours in 1 day.
Time is nearly always the independent variable, which are normally plotted on the horizontal axis.
The horizontal axis is for the independent variable, which is time. Time is always placed on the horizontal, or x-axis.
Independent variables can take values within a given boundary. The dependent variable will take values based on the independent variable and a given relationship at which the former can take its values.
The variable which is controlled.On a graph, the independent variable is on the x-axis (horizontal) and the dependent variable is on the y-axis (vertical).When we choose a value of x, the value of y depends on the x-value we chose.For instance, if we record the temperature every hour, time is the independent variable because we control the values. The temperature (which is measured) is the dependent variable because it depends on the time.