Entry Exam Category: High School Equivalency Exams
Course: HiSET
Exam: HiSET Math Practice Test
Practice Question
The relationship between h, a person's height in inches, and f, the length in inches of the person's femur, is modeled by the equation: h = 1.88f + 32. Which statement correctly identifies and describes the slope of the equation?
Answer Choices
- A: The slope of the equation is 1.88, and it represents the femur length, in inches, when the height is 32 inches.
- B: The slope of the equation is 1.88, and it represents the number of inches the height increases for each inch the femur length increases
- C: The slope of the equation is 1.88, and it represents the number of inches the femur length increases for each inch the height increases
- D: The slope of the equation is 32, and it represents the number of inches the height increases for each inch the femur length increases.
- E: The slope of the equation is 32, and it represents the height, in inches, when the femur length is 1.88 inches.
Correct Answer: B
Rationale: In h = 1.88f + 32, slope is 1.88. It represents the change in h per unit change in f, i.e., height increases by 1.88 inches per inch increase in femur length. Options: A incorrect (slope ≠ femur length); C incorrect (reverses variables); D, E incorrect (slope ≠ 32). B correct.