1. Lesson 2

1.2. Are You Ready?

Mathematics 20-1 Module 1

Module 1: Sequences and Series

 

Are You Ready?
 

Complete these questions. If you need help, visit Refresher or contact your instructor.

  1.  
    1. How do you know if a sequence is arithmetic? Answer

    2. Give an example of an arithmetic sequence with at least four terms. Answer

  2. For each of the following arithmetic sequences, use the general term tn = a + (n − 1)d to find the indicated variable.

    1. Find t24 in 7, 13, 19, 25, …. Answer

    2. Find n in 250, 225, 200, …, −125, −150, …. Answer

  3. What is a linear function? Answer

  4. State what a linear function looks like when the linear function is expressed in each of the following ways:

    1. graph Answer

    2. table Answer

    3. equation Answer

  5. For each of the following linear-function graphs, write the corresponding equation.

    1. This shows the graph of a linear function that passes through points (0, 0), (2, 3), (4, 6), and (6, 9).

      Answer


    2. This shows the graph of a linear function that passes through (0, 2) and (2, 6).

      Answer

  6. State the domain for each of the following graphs:


    1. This shows the graph of a function consisting of points {(1, 1), (3, 3), (5, 5), (7, 7), (9, 9)}.

      Answer


    2. This shows the graph of a linear function passing through (0, 0) and (10, 10).

      Answer


    1. What is 20% of 200? Answer

    2. What is 6% of 122? 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.