Then you can figure out which is the independent variable and which is the dependent variable: (Independent variable) causes a change in (Dependent Variable) and it isn't possible that (Dependent Variable) could cause a change in (Independent Variable). For example: (Time Spent Studying) causes a change in (Test Score) and it isn't possible that (Test Score) could cause a change in (Time Spent Studying).
Domain and Range. When we look at a function like f(x) = x + 2, we can easily say where the function f(x), in this case, the value along the y-axis, is at any point we choose along the x-axis. We know that at x = 3.4, f(x) = 5.4. The values of x that the function will output a value for is called the domain of f. In the case of f(x) = x + 2, the domain is the entire x-axis, or, formally speaking, all real numbers. The values which f(x) takes on is called the range of f.
We have to find the domain of the function y= ln (x^2 - 3x + 2). Now domain refers to all the values of x for which y exists. Here y will exist for all values of x that allow x^2 - 3x + 2 to be positive as the logarithm for 0 or negative values is not defined.So the domain of the function is all values of greater than 2 and less than 1.giorgiana1976 | College Teacher | (Level 3) Valedictorian. Posted on. (Answer #2). In the domain of definition of the given function there are found all the admissible values of x for the logarithmic function to exist.o the domain of the function is all values of greater than 2 and less than 1. giorgiana1976 | College Teacher | (Level 3) Valedictorian. Posted on. (Answer #2). In the domain of definition of the given function there are found all the admissible values of x for the logarithmic function to exist.