Q:

# What is the constant rate of change?

A:

The constant rate of change is a predictable rate at which a given variable alters over a certain period of time. For example, if a car gains 5 miles per hour every 10 seconds, then "5 miles per hour per 10 seconds" would be the constant rate of change.

## Keep Learning

When graphing the constant rate of change, it is important that the variance of the x and y coordinates move in conjunction with each other. For each alteration in the horizontal x axis, there must be a complementary change in the vertical y axis. So long as the change is consistent between the two, the rate of change is constant. If the change in the x and y relationship changes, even if it occurs as a statistical outlier, the graphing equation will no longer be constant.

If a rate of change is constant, the line goes either up or down in a straight line that follows a sloped path when it is shown on a graph. If the rate is truly constant, it will not fluctuate at any time, since that would negate the "constant" aspect of the rate, making it a variable rate of change or inconstant rate of change.

In economics, statistics and mathematics, a constant rate of change is very desirable since it means that future outcomes are very predictable.

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