When an independent relationship is graphed, the resulting line or curve is:
a. upward-sloping.
b. downward-sloping.
c. vertical.
d. horizontal.
QUESTION 2A line that has a different slope at each point is a:
a. curve. b. straight line.
c. vertical line. d. horizontal line.
QUESTION 3Which of the following is used to illustrate an independent relationship between two variables?
a. An upward-sloping curve b. A downward-sloping curve
c. A hill-shaped curve d. A horizontal or vertical line
QUESTION 4Which of the following statements is correct?
a. Slope is the ratio of the vertical change (the rise or fall) to the horizontal change (the run).
b. A direct relationship is one in which two variables change in the same direction.
c. An inverse relationship is one in which two variables change in opposite directions.
d. An independent relationship is one in which two variables are unrelated.
e. All of these.
QUESTION 5Measured between two points on a curve, the ratio of the change in the variable on the vertical axis to the change in the variable on the horizontal axis is the:
a. axis. b. slope.
c. dependent curve. d. independent curve.
QUESTION 6The slope of a line parallel to the horizontal axis is:
a. 1.
b. 0.
c. infinite.
d. undefined.
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