Which of the following represents a function?

Some later academics question and answer asked over students to say what they admit is the most important important aspect for a student to do in order for you to get success. A lot of reactions, the one which that stood out was practice. People who are always successful do not become successful by being born. They work hard and commitment their lives to succeeding. This is how you can reach your goals. Below some question and answer examples that you can potentially benefit from to improve your knowledge and gain insight that will guide you to keep up your school studies.

Question:

Which of the following represents a function?

Answer:

Functions cannot have different values of y for the same value of x. Now let us check each case one at a time.

First Case: For the same value of x=-1, y has two different values of 7 and 1, which is not allowed in a function. Therefore, the first case is not a function.

Second Case: For the same value of x=-1, y has two different values of -5 and 1, which is not allowed in a function. Therefore, the second case is not a function.

Third Case: For the same value of x=3, y has two different values of 2 and 4, which is not allowed in a function. Therefore, third case is not a function.

Fourth Case: In this case no value of x is same. So, this is a function.

From the answer and question examples above, hopefully, they might guide the student sort out the question they had been looking for and keep in mind of all declared in the answer above. Then could actually have some sharing in a group discussion and also learning with the classmate in reference to the topic, so another student also procure some enlightenment and still keeps up the school learning.

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