MS 100 Test One Spring 2001

  1. Solve for x and draw your solution on a number line:  -3x - 51 > 63

  2. Do the lines y = 7x + 5 and y = -7x -11 intersect?

  3. Is the following a function?
    x 25 16 4 0 4 16 25
    y -5 -4 -2 0 2 4 5
  4. Matching: Write the letter of the graph family on the proper graph
    1. Circle
    2. Cubic
    3. Linear
    4. Quadratic

    linear.gif (2126 bytes)cubic.gif (2810 bytes)
    circle.gif (2761 bytes)quadratic.gif (2364 bytes)

  5. Graph the following equation: y = x - 3x - x + 3
    x -2 -1 0 1 2 3 4
    y _____ _____ _____ _____ _____ _____ _____

    graph.gif (4200 bytes)

  6. What is the y-intercept for the graph in question 5?

  7. What are the x-intercepts for the graph in question 5?

  8. Use the x-intercepts to generate the factorization of the equation in question 5.

    y = (x +  ______ )(x +  ______ )(x +  ______ )

  9. Label the inflection point on the graph in question 5.

  10. For f(x) = 7x - 1 and g(x) = -5x + 4
    1. Find f g(6)

    2. Find g f(6)

    3. Find f g(x)

 

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