Which of the following lists is ordered from least to greatest? |−1.5|, −2, 0, ,
−2, −1.5, 0, ,
−2, −1.5, 0, ,
−1.5, −2, 0, ,

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.