Choose the equation below that represents the line that passes through the point (7,-2) and has a slope of -3.

a.) y - 2 = -3(x+7)
b.) y + 7 = -3 (x-2)
c.) y + 2 = -3 (x-7)
d.) y - 7 = -3 (x+2)

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 are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?