Factor this. (if you can do the box method? )
gcf=2d

If g(x) is an odd function, which function must be an even function?

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

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?