GED Math Review: Nonlinear Functions

Questions:

Directions: Choose or write the answer to each question.

1. Which of the following scenarios must be represented by a nonlinear function?
• your job earnings of $60 per week
• the speed of a bus as it drives around the city
• the distance a car travels at 50 mph on the highway
• your height above ground level as you descend a set of stairs
  
  For questions 2 and 3, refer to the following graph of a nonlinear function.
  
  
2. This graph is increasing on the interval from
   
   
3. Which of the following points represents the minimum
• (-3, 5)
• (-1, -2.5)
• (-2, 0)
• (1, 5)
  
  For questions 4 and 5, refer to the following graph of a nonlinear function.
  
  
4. This graph is decreasing on the interval from
   
   
5. Which of the following cannot be an output of this function?
• -1
• 0
• 5
• 10
6. Which scenario best describe the nonlinear function graphed below?
   
   
   
• your dog's weight over time
• your height when riding a Ferris Wheel over time
• the volume of water used as a pool is filled over time
• the temperature of a cup of coffee sitting on the counter over time

answer:

1. the speed of a bus as it drives around the city
2. -1
3. (-1, -2.5)
4. negative infinity
5. -1
6. your height when riding a Ferris Wheel over time

Reference:

Complete Test Preparation for the GED Test 2014 by Steck-Vaughn