One must look for the minimum as well as the maximum values of y.Īnswer: A function refers to an expression that shows the relationship between the one variable and another variable.Substitution of different x-values into the expression for y so as to understand what is going on. The range of a function happens to the spread of possible y-values.Question 4: How can one find the range of a function?Īnswer: One can find the range of a function by the following steps: Please do not confuse this power antiderivative rule x n dx x n+1 / (n + 1) + C, where n -1 with the power rule of derivatives which is d (x n )/dx nx n-1. Usually one must avoid 0 on the fraction’s bottom and the negative values which are under the square root sign. Using the antiderivative power rule, we can conclude that for n 0, we have x 0 dx 1 dx dx x 0+1 / (0+1) + C x + C. Question 3: How can one find the domain of a function?Īnswer: One can determine the domain of each function by looking for independent variables values which one is allowed to use. The range means the set of possible output values whose representation takes place on the y-axis. The domain of a graph involves all the input values which are represented on the x-axis. Question 2: What is meant by domain and range?Īnswer: Domain means the set of possible input values. We also know that for each real number ‘x’, We know that the sine and cosine functions are defined for all real numbers. Domain and Range of Trigonometric Functions
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