Question

A clothing store uses the step function f(x) to recommend jeans sizes as a function of x, a child’s height in inches. f(x) = StartLayout Enlarged left-brace 1st row 1st column 1 2nd column 40 less-than-or-equal-to x less-than 42 2nd row 1st column 2 2nd column 42 less-than-or-equal-to x less-than 44 3rd row 1st column 3 2nd column 44 less-than-or-equal-to x less-than 46 4th row 1st column 4 2nd column 46 less-than-or-equal-to x less-than 48 EndLayout According to the function, which is the height of a child who should wear size 2 jeans? 41.9 inches 42 inches 44 inches 44.1 inches

Answer 1

Answer: B. 42 inches

Explanation:

Answer 2

42 inches

Explanation:

The function states in its second row that for size 2, the range of x (a child’s height in inches) is 42 ≤ x < 44. Then, the option 41.9 is incorrect because is less than 42 and x is greater-or-equal-to 42; option 44 inches is incorrect because it is equal to 44 and the equality sign is not included; option 44.1 inches is greater than 44 and x is less than 44; and option 42 inches is correct because x is greater-than-or-equal to 42, that is, the equal sign is included.