1.   Select the correct graph for the relation y = -2x if the domain is
{-2, -1, 0, 1, 2}.
    A. B.
    C. D.
    Hint

  2.   Which scatter plot shows that x and y have a negative correlation?
    A. B.
    C. D.
    Hint

  3.   What is implied when it is said that x and y have a positive correlation?
    A. When the value of x decreases, the value of y does not necessarily increase or decrease.
    B. When the value of x increases, the value of y increases.
    C. When the value of x increases, the value of y decreases.
    D. When the value of x increases, the value of y does not necessarily increase or decrease.
    Hint

  4.   What is implied when it is said that x and y have no correlation?
    A. When the value of x increases, the value of y does not necessarily increase or decrease.
    B. When the value of x increases, the value of y decreases.
    C. When the value of x increases, the value of y increases.
    D. When the value of x decreases, the value of y decreases.
    Hint

  5.   Which relationship would most likely have no correlation?
    A. A person's height and the person's shoe size.
    B. The number of pizzas ordered, and the total price of the bill.
    C. A person's age, and the address of the person.
    D. The number of miles driven, and the number of gallons of gas in the car.
    Hint



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