Find the gradient of the line segment between the points (-2,2) and (5,-1). Give your answer in its simplest form.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Select the quadratic that has root x = 8 and x = -5