The interval of the domain is the function increasing is (-infinity , 4)
What is a function ?
Function is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
The domain of a function is the set of values that we are allowed to plug into our function.
This set is the x values in a function such as Function(x). The range of a function is the set of values that the function assumes.
This set is the values that the function shoots out after we plug an x value in.
In the given graph
we can see that the value of x and function(x) starts increasing from -infinty and continues to keep increasing uptil x = -4
So the interval of the domain is the function increasing is (-infinity , 4)
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