Lesson 1

Are You Ready?

Complete these questions. If you experience difficulty and need help, visit Refresher or contact your teacher.

1.  
   1. What is a natural number? Answer
      
      
   2. Give three examples of natural numbers and three examples of numbers that are not natural numbers. Answer
      
      
2. Determine the pattern in each table and apply the pattern to complete the table.
   
   
   1. 
      

      1	2
      2	4
      3	6
      4
      5
      6

      
      Answer
      
      
   2. 
      

      −1	4
      2	7
      4	9
      9
      10
      15

      
      Answer
      
      
   3. 
      

      1	1
      2	4
      3	9
      4
      5
      6

      
      Answer
      
      
3. Rearrange the following formulas for the indicated variable.
   
   
   1. C = 2πr, r Answer
      
      
   2. P = 2 + 2w, w Answer
      
      
   3. b1 Answer
      
      
4. Determine the value for each of the formulas below by substituting the given variables.
   
   
    

   	Formula	Variables
   a.	V = wh	= 10 cm   w = 7 cm   h = 3 cm
   b.	vf = vi + at	vi = 20.34   a = 9.81   t = 5.22
   c.	A = 2πr2 + 2πrh	r = 4.5 in   h = 5.0 in

   
   
   Answer

How did the questions go? If you feel comfortable with the concepts covered in the questions, skip forward to Discover. If you experienced difficulties, use the resources in Refresher to review these important concepts before continuing through the lesson.