Graph the line that pass through the points (-3,-8) and (2,-3) and determine the equation on the line

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?

Libby built a fence that was 56 \text { feet}56 feet long over 44 days. she built the same length of fence each day. how many inches of fence did libby build each day?

What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve. someone !