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In Problems 21-28, determine whether the given function is linear or nonlinear. If it is linear, determine the equation of the line.
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To calculate: Whether the given function is linear or non-linear. If it linear, then we have to determine the equation of the line.
Answer to Problem 24AYU
Solution:
The given function is a linear function and the equation of the line is .
Explanation of Solution
Given:
The given function is
Formula used:
A function is said to be linear, if it has a constant average rate of change otherwise the function is non-linear.
The formula for finding the average rate of change is
We know that the average rate of change of a linear function is the slope of that function.
Therefore, we can find the equation of the line using the point-slope formula.
Thus, we get
Calculation:
Now, we have to find the average rate of change.
The rate of change between the first and the second row is
The rate of change between the second and the third row is
Similarly, the rate of change between the other rows also can be found to be 4.
Therefore, the average rate of change is a constant.
Thus, the given function is linear.
Now, we need to determine the equation of the line.
Here, we have the slope and let and
Now, by using the point-slope formula, we can write the equation of the line as
Therefore, the equation of the line is .
Chapter 3 Solutions
Precalculus
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