1.   Which three points are collinear?
    A. A(4, 1), B(-2, 3), C(6, 8)
    B. D(0, 5), E(1, -2), F(-3, 1)
    C. J(-3, -11), K(2, 4), L(0, -2)
    D. G(2, 6), H(4, -3), I(-1, -7)
    Hint

  2.   A plot of a set of data as ordered pairs is called a ___________.
    A. scatter plot B. slope
    C. proportion D. line
    Hint

  3.   The vertices of are M(4, 2), N(-2, 5), and P(2, -3). Which is the equation of the line containing the median from M to ?
    A. y = 2 B. y = 3x + 9
    C. D.
    Hint

  4.   QRS has vertices Q(3, -4), R(1, 2), and S(-5, 0). Which is the equation of the line through the midpoints of and ?
    A. B. y = 2x + 4
    C. D.
    Hint

  5.   Using the points (2,5) and (10,20) find the equation of the best-fit line for the scatter plot.
   
    A. B.
    C. D.
    Hint