Prove that the function y = 4/5-x is increasing in the domain.
| August 6, 2021 | education
First of all, it should be noted that the original function is defined on the entire set of rational numbers. Let’s find the derivative of the function:
y ‘= (4/5-x)’ = -1.
Since the derivative is a negative number and does not depend on x, then the function will be decreasing over the entire domain.
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