For the data, determine the median: 15.23, 16.43, 15.29, 17.67, 15.55, 16.68
2 answers:
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Answer:
Decrease of 63.5%.
Step-by-step explanation:
Exponential function:
An exponential function has the following format:
In which y(0) is the initial value and r is the rate of change, as a decimal. If r is positive, it is a increase. If it is negative, it is a decrease.
In this question:
We have that:
So
So a decrease of 63.5%.
The equation that represents the relationship between x and y is
Explanation:
Given that a construction crew is extending the length of the center line on a highway.
The length of the line starts out as 6 meters long, which is represented on a coordinate plane as the point (0,6). The crew works for 20 minutes and the line is now 17 meters long, which is represented as the point (20,17).
Let x represents the number of minutes spent working.
Let y represents the length of the line in meters.
We need to determine the equation that represents the relationship between x and y.
The equation can be determined using the formula,
First, we shall determine the slope using the formula,
Substituting the coordinates and
, we get,
Now, we shall substitute the slope and the coordinate
in the formula
, we have,
Simplifying, we get,
Thus, the equation that represents the relationship between x and y is