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 1

"f(x ) = |42.67 – x|" is the answer because it is impossible to have a golf ball with a negative diameter making the correct answer to be C to make sure the end is still positive