Some new education question and answer enquired students to tell what they think is the most important important concern for a student to do if they wanted to score success. One which response stood out from the rest was practice. Successful persons ordinarily are not born successful; they become successful through hard work and dedication. If you tend to complete your goals, keep this in mind! in the following paragraphs some question and answer examples that you could actually make use of to elevate your knowledge and gain insight that will assist you to keep up your school studies.

## Question:

The standard diameter of a golf ball is 42.67 mm. A golf ball factory does quality control on the balls it manufactures. Golf balls are randomly measured to ensure the correct size. One day, an inspector decides to stop production if the discrepancy in diameter is more than 0.002 mm. Which function could represent this situation?A. f(x ) = x – |42.67|

B. f(x ) = |x| – 42.67

C. f(x ) = |42.67 – x|

D. f(x ) = 42.67 – |x|

## Answer:

*The correct answer is: *

C) f(x)=|42.67-x|.

*Explanation**: *

Production will be stopped if the difference in diameter is greater than 0.002 mm.

This difference can mean that the golf ball has a diameter more than 0.002 larger than 42.67 mm, or a diameter more than 0.002 smaller than 42.67. This is the reason for using an absolute value function.

__Absolute value__ represents the distance a number is from 0. For this function, we would want only the values where the function is less than 0.002.

From the answer and question examples above, hopefully, they can possibly guide the student solve the question they had been looking for and take notice of each thing declared in the answer above. You can then have a discussion with your classmate and continue the school learning by studying the subject as a group.