1.   What type of relationship or pattern does the scatter plot suggest?
   
    A. a linear relationship whose data have a positive relationship B. a linear relationship whose data have a negative relationship
    C. none of these D. no pattern
    Hint

  2.   Which is the best prediction equation for the data?
   
    A. y = 5x - 19,950 B. y = 20x - 19,950
    C. y = 10x - 19,950 D. y = 25x - 19,950
    Hint

  3.   Use a graphing calculator to find the equation of the regression line.
   
    A. y = x - 576 B. y = 2x - 25
    C. y = 23x - 21,000 D. y = 12x - 23,947
    Hint

  4.   Use two ordered pairs to write the equation of a best-fit line.
   
    A. y = 3x + 72 B. y = 3x
    C. y = 5x D. y = 5x + 75
    Hint

  5.   Determine two points that appear to represent the data in the scatter plot. Then find and interpret the slope.
   
    A. Paul's test scores improve an average of 5 points with each test.
    B. Paul's test scores are neither increasing nor decreasing.
    C. Paul's test scores improve an average of 3 points with each test.
    D. Paul's test scores improve an average of 15 points with each test.
    Hint



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